Honda OBD2 codes
Codes where we have reviewed, vehicle-specific evidence for this make.
Honda's notes cover misfire from oil-fouled spark plugs under extended warranty, a cracked torque converter lock-up piston that flashes the D indicator on some 2017 to 2019 models, and fuel pump impellers that can swell and stall the 2019 Civic Type R and Fit. Other bulletins point to connector corrosion, rodent damage, EGR contamination, purge solenoids and software updates, so checking the bulletin first can save buying the wrong parts.
B0001 and the airbag light on the 2012 to 2014 Civic
A Honda dealer message for the 2012 to 2014 Civic says that when B0001 is stored with the SRS light on, the driver's airbag module should be replaced. This is an airbag fault, so have the system inspected by a qualified technician rather than working on it yourself. We have not confirmed the message is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0020 with the SRS light on the Accord and CR-V
A Honda dealer message covers the SRS light with B0020 on 2018 to 2020 Accord and 2019 to 2020 CR-V. Honda asked dealers to collect parts from affected cars before repairing them, so take the car to a Honda dealer rather than an independent shop. This is an airbag system, so have it inspected rather than working on it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B12C5 and a keyless start that may not start the car first time
A Honda owner notification letter covers B12C5 on 2016 to 2018 HR-V models that may not start on the first press of the engine start/stop button, and Honda extended the warranty on the keyless start system. An owner reports the switch replaced after the car stopped starting reliably. Check the start button and the key detection first. We read only the NHTSA summary of the letter, and we have not confirmed the warranty extension still applies, so this is labelled vehicle data rather than confirmed by bulletin.
C003A on a rear wheel speed sensor circuit in an owner complaint
One owner complaint on a 2018 Honda Accord reports C003A as a right rear wheel speed sensor circuit short to ground or open, with the mechanic suspecting the wheel hub assembly. It rests on a single report. The brake system is safety-critical, so have it inspected by a qualified shop. The source is owner reports, and the cause needs testing to confirm.
C0040 read as a brake lamp switch failure
An owner complaint on a 2020 Pilot says the dealer read C0040 as a brake lamp switch failure with warning lights on. The brake lamp switch is part of the braking system, so have it inspected by a qualified shop rather than repaired at home. The source is an owner complaint filed with NHTSA, so this is owner-reported vehicle data and not confirmed by a bulletin.
C0051 with rodent damage to the harness
An owner complaint on a 2019 CR-V quotes a dealer readout of C0051, steering angle sensor learning incomplete, together with rodent damage to the main harness. Look for chewed wiring first. Steering is safety-critical, so have it inspected by a qualified shop. The source is an owner complaint filed with NHTSA, so this is owner-reported vehicle data and not confirmed by a bulletin.
C0265 as an open relay circuit
Honda bulletin 1203 names C0265 on the 1998 to 2001 Passport as an open relay circuit. The Passport was built by Isuzu. We only read the NHTSA summary, so the relay and the repair are not described. Have the system inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0010 fixed with an engine software update
Honda bulletin A16-014 fixes P0010, set together with a related Honda code, on the 2014 and 2015 Accord with the electric VTC system by updating the engine software. Ask a dealer before replacing parts. We read NHTSA's summary only; the full bulletin was not reviewed, and we have not confirmed it is still current.
P0035 from a broken wire at the turbo bypass solenoid
Honda bulletin A18-044, with a second bulletin on the same fault, ties P0035 on the 2017 and 2018 Civic, including the Type R, to a wire in the turbocharger bypass solenoid connector that breaks and opens the circuit. The car can show Rev Match or Emissions System Problem messages, and one 2018 owner also reports sudden loss of power. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0087 from a swollen fuel pump impeller
Honda bulletin A21-022 says a fuel pump impeller on the 2019 Civic Type R can swell and seize the pump, setting P0087 and possibly stalling the engine while driving. A stall at speed is a safety risk, so have it checked promptly and check for open recalls by VIN. We read NHTSA's summary only; the full bulletin was not reviewed, and we have not confirmed it is still current.
P0087 from a swollen fuel pump impeller
Honda bulletin A21-023 covers the same fuel pump impeller condition on the 2019 Fit: it can set P0087, cause a no-start or stall the engine while driving. A stall at speed is a safety risk, so have it checked promptly and check for open recalls by VIN. We read NHTSA's summary only; the full bulletin was not reviewed, and we have not confirmed it is still current.
P0088 on the 2015 Accord
Honda published bulletin 15-036 for the check engine light with P0088 on the 2015 Accord. We only read the announcement, which gives no cause or fix, so this needs testing to confirm. We have also not confirmed the bulletin is still current.
P0107 with a rough idle at cold start
Honda bulletin 04004 covers a rough idle at cold start with P0107 on the 1996 to 2002 Odyssey. We only read the NHTSA summary, so it gives no cause or fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0122 with the check engine light on
Honda bulletin 04-008 covers the check engine light with P0122 on 2002 to 2004 CR-Vs. The summary we read does not give the cause or repair, so ask a Honda dealer for the bulletin before replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0131 with poor performance on the Civic
Honda bulletin 03-076 covers the check engine light with P0131 or poor engine performance on the 1998 to 2000 Civic. We only read the summary, not the bulletin's fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0133 stored in the PCM, 1998 Civic
Honda bulletin 99-049 covers the check engine light on with P0133 stored in the PCM on the 1998 Civic. We only read the NHTSA summary, so the repair is not known. Start with the upstream oxygen sensor, which this code describes as slow to react. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0133 for a slow primary oxygen sensor
Honda bulletin 00017 covers the check engine light with P0133 stored for a slow-responding primary heated oxygen sensor on 1998 to 2000 Accords. Only the NHTSA summary was read. Check the primary oxygen sensor and its wiring first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0134 with the check engine light on, per a Honda bulletin
Honda bulletin SB-08-067 covers the check engine light coming on with P0134 among a short list of oxygen sensor and fuel trim codes. The summary does not give a cause or repair. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0236 with the light on in some Accords
Honda bulletin A21-049 covers 2018 to 2021 Accords with the check engine light on and P0236 stored. Only the NHTSA summary was read, so the repair is not stated. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0301, P0302, P0303 and P0304 from oil-fouled spark plugs, with extended warranty
Honda bulletins A13-078 to A13-082 extend warranty coverage on some models for P0301, P0302, P0303 and P0304 caused by oil-fouled spark plugs from piston rings that have rotated. If the plug from the misfiring cylinder is oily, ask a Honda dealer whether the VIN is covered before buying coils or plugs.
P0325 from rodent damage to the knock sensor harness
Honda bulletin 105 traces P0325 to rodents chewing the knock sensor harness on the 2003 and 2004 Accord, 1999 to 2004 Odyssey and 2003 and 2004 Pilot. Check the harness before replacing the sensor. We read NHTSA's summary only; the full bulletin was not reviewed, and we have not confirmed it is still current.
P0326 from a software misread on the 2016 Civic
Honda bulletin A16-018 says the engine computer on the 2016 Civic can misread knock sensor signals and set P0326, and the fix is a software update. Ask a dealer about the update before replacing the knock sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0335 and P0339 from a corroded crankshaft sensor connector
Honda bulletin A16-011 traces P0335 or P0339 on the 2013 to 2016 Accord and 2015 and 2016 CR-V to corrosion between the engine harness and the crankshaft sensor connector. Inspect the connector before replacing the sensor. A crankshaft sensor fault can cause stalling or a no-start. We read NHTSA's summary only; the full bulletin was not reviewed, and we have not confirmed it is still current.
P0339 with no start or rough idle on the 2023 Accord Hybrid
Honda bulletin A23-048 covers a no-start, rough idle or rpm hunting on the 2023 Accord Hybrid with P0339. The summary points to the camshaft and crankshaft position signals, so check those and any related software update first. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0344 from cam end play damaging the sensor
Honda bulletin SB 09-042 says P0344 on 2005 to 2009 Odysseys can come from excessive camshaft end play letting the cam gear damage the camshaft position sensor. Honda replaces the front camshaft, thrust cover, cam gear and sensor, so a new sensor alone may fail again. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0369 and reduced power from camshaft end play
Honda bulletin A18010I links P0369 with reduced engine power to excessive camshaft end play on the 2016 to 2017 Pilot and Ridgeline, and Acura has the same guidance for the 2016 to 2017 MDX. On some later Honda models the code is a PCM software fix instead. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0401 from EGR contamination, with an extended warranty
Honda warranty extension 00009 covers EGR valve contamination or EGR port clogging on the 1999 to 2003 Odyssey and 2003 Pilot, which can set P0401 or cause hesitation or surging. It was issued in 2005, so whether it still applies is not verified. We read NHTSA's summary only.
P0404 from the engine computer commanding too much EGR lift
Honda bulletin A13-095 says that on 2011 to 2014 Odyssey, after extended driving the engine computer may command too much EGR valve lift, which can damage a part inside the valve and set P0404. A software update goes with the valve repair, so a new valve alone may not last. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0441 from a sticking purge solenoid
Honda bulletin 23-091 covers the 2019 to 2024 Odyssey, Pilot, Ridgeline and Passport, where spring variation can make the purge control solenoid stick now and then and set P0441. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0497: low purge flow or internal vacuum leak
Honda bulletin 1105 covers P0497 (low purge flow or an internal vacuum leak) on the 2001 to 2005 Civic. Only its title was available to us. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P04F1 as an EVAP low purge flow fault
Honda bulletin A21-081 covers a check engine light with an EVAP system purge flow fault and a low purge flow fault, including P04F1, on 2017 to 2022 CR-V models. The summary does not give the repair, though the vehicle note records one 2018 owner who had the purge valve replaced. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P04F1 with a purge flow code on a 2019 Pilot
NHTSA owner complaints on the 2019 Honda Pilot list P04F1 together with an EVAP purge flow code. One owner replaced the purge flow valve and the joint purge valve and the light cleared, while another was told fuel injectors. Bulletin A21-081 is not listed for the Pilot. The source is owner reports, not a diagnosis.
P0501 with cruise surge or an erratic speedometer on the CR-V
Honda service bulletin 01019 covers cruise control surge, an erratic speedometer or a warning light with P0501 on the 1998 to 1999 CR-V. NHTSA labels the code as a vehicle speed sensor malfunction. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0560 seen at pre-delivery inspection on the 2001 Accord
Honda bulletin 181000 gives information on vehicles that show a lit check engine light with code 34 (P0560) stored in the PCM during pre-delivery inspection, on the 2001 Accord. We have only read the NHTSA summary and have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0562 in hybrid modules with no symptom
Honda bulletin A16-026 covers 2017 Accord Hybrid control modules that store P0562 with no other codes, the check engine light off and no apparent symptom. The summary does not give the remedy, so ask a dealer. We read NHTSA's summary only; the full bulletin was not reviewed, and we have not confirmed it is still current.
P05A0 as an active grille shutter malfunction
A 2017 Honda CR-V dealer report quoted in an NHTSA complaint identified P05A0 as an active grille shutter malfunction, along with a second code. It is a single owner report, and the link needs testing to confirm.
P060A with multiple warning lights and fail-safe mode
Honda bulletin A25-025 covers P060A with multiple warning lights and possible fail-safe mode on 2023 and 2024 Accords. We only read the NHTSA summary, so the repair is not known. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0685 with the engine shutting off at stops
An owner of a 2007 Accord reports the engine shutting off at stops with P0685, and dealers applying engine computer software updates. Have the relay, fuses and battery checked as well. This comes from owner reports to NHTSA, not a bulletin, so it is labelled vehicle data rather than confirmed by bulletin.
P0685 with stalling at city speeds on the CR-V
One owner of a 2015 Honda CR-V reports the engine stalling at 25 to 40 mph and restarting, with P0685 stored. The dealer confirmed the code and replaced the battery, the powertrain control module and the powertrain relay fuse. Check the battery and the relay fuse first. The source is owner reports, a single complaint that NHTSA has not verified, so it is labelled vehicle data rather than confirmed.
P0706 with an engine that may not crank
Honda bulletin 05-058 covers the check engine light with P0706 and an engine that may not crank on the 2004 to 2005 CR-V and Civic. The summary we read does not give the fix, so a Honda dealer should check whether it applies. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0710 from the ATF temperature sensor or its circuit
Honda Service News 603 says a faulty ATF temperature sensor or its circuit can cause P0710 on the 2002 CR-V and Odyssey. Honda calls it an electrical problem that a mechanical fault in the transmission cannot cause. Check the sensor and its wiring before looking at internal transmission parts. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0716 from transmission software after a downshift
Honda bulletin A19-004 says P0716 on the 2016 and 2017 Pilot can set after a downshift from 9th or 8th to 7th because of a transmission computer software miscalculation. Acura bulletin B19-003 covers the same issue on some Acuras. Ask a dealer for the software update before testing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0716 with harsh or jerky upshifts
Honda bulletin A19-124 covers intermittent harsh or jerky upshifts under steady acceleration, or the check engine light with P0716, on the 2018 and 2019 Odyssey, and a later version adds the Passport and Pilot. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0725 with tachometer fluctuation on the Accord
Honda bulletin 01-07-01 covers tachometer fluctuation and the automatic transmission code P0725 on the 1995 to 1997 Accord. We only read the summary, not the bulletin's fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0730 with the Civic unable to move in Drive
Honda bulletin 04-036 covers 2001 to 2004 Civics that cannot move in Drive, with the check engine light on or the D light blinking and P0730 stored. We only have the bulletin summary, which does not give the fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0740 on the Odyssey: do not replace the solenoid first
A May 2004 Honda Service News item warns technicians not to replace the solenoid by default when troubleshooting P0740 on the lock-up control system of the 1999 to 2004 Odyssey. Work through the diagnosis before buying a solenoid. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0740 after the transmission has been removed
Honda Service News 04012004 covers P0740 appearing on 1998 to 2000 Civic models after the automatic transmission has been removed and refitted. If the code appeared after transmission work, start by checking that work. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0741 with a flashing D: cracked torque converter lock-up piston
Honda bulletins A23-076, A23-077 and A23-078 say some torque converters have a cracked lock-up piston, so the lock-up clutch cannot hold, the D indicator flashes and P0741 sets. They cover the 2017 Accord, 2017 Odyssey and 2017 and 2018 Pilot (A23-078 also lists the 2017 to 2019 Ridgeline). A flashing D means have the transmission checked promptly. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0753 in Honda automatic transmission troubleshooting
Honda bulletin 010202 gives troubleshooting for automatic transmission codes including P0753 on 1998 to 2002 Accord and Odyssey models. We only read the NHTSA summary, which does not give the steps. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0763 with a jerk into gear when cold
A 2018 Odyssey owner complaint says the Honda dealer retrieved P0763 (shift solenoid C electrical) after the van hesitated or jerked into gear, worse when cold. The code came back as a hard code after clearing. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P0780 after a solenoid or transmission is replaced
Honda bulletin 06012004 covers P0780 that sets after a shift solenoid or the automatic transmission is removed and replaced on the 2003 Accord and 2002 to 2004 Odyssey. Another Honda bulletin, 161200, links the code to a hydraulic problem on the 2001 Odyssey. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0793 with hot-looking transmission fluid
A 2015 Honda Civic owner complaint to NHTSA says a dealer code reader showed P0793, a speed sensor circuit with no signal, on a CVT that failed. The technician noted dark, hot-looking fluid and the owner was quoted a replacement. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
P0793 with loss of drive and a flashing D light
Honda HR-V owners report P0793 with loss of drive, stalling and a flashing D light. In one complaint the dealer replaced the CVT drive pulley speed sensor, which did not fix the problem, and the D indicator then began flashing. The source is owner reports, not a bulletin.
P0810 from a defective transmission control module
A 2019 Pilot owner complaint says the Honda dealer found a defective transmission control module with P0810 (clutch position control error) stored and confirmed the module must be replaced. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P0810 as a clutch position control error
A 2019 Honda Passport owner complaint to NHTSA says the Honda dealer diagnosed P0810, a clutch position control error, and replaced the transmission control module. The dealer said a second repair step could follow if the problem recurs. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
P0848 with sluggish performance on the Odyssey
Owners of 2016 Honda Odysseys reported P0848 to NHTSA. One scan readout describes a faulty transmission fluid pressure switch alongside a cylinder 1 misfire code, with sluggish engine performance. The source is owner reports, not a bulletin or a confirmed repair.
P0973 from a short in the shift solenoid valve A circuit
Honda bulletin 05071 covers the 2005 Accord and CR-V with the MIL on and P0973, a short in the shift solenoid valve A circuit. We only read the NHTSA summary, so it names no repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A3F from a failed motor inverter solder joint
Honda bulletin A20-030 says a defective solder joint can make the motor power inverter fail on some Honda and Acura hybrids, setting several codes including P0A3F. Honda extended warranty coverage to 15 years or 150,000 miles. Ask a dealer whether your vehicle is covered. High voltage parts are dangerous, so do not open the inverter yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A78 from a failing motor power inverter
Honda bulletin A20-030 says the motor power inverter on the 2012 to 2015 Civic Hybrid can fail over time from a defective solder joint, setting codes including P0A78. Honda extended coverage to 15 years or 150,000 miles, so ask a dealer before paying for the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A7F from IMA battery software memory effect
A Honda service bulletin says software controlling the IMA battery on 2010 to 2012 Honda hybrids can leave a memory effect that looks like lost capacity, and that P0A7F may be set. The bulletin has no number in the data we read, and we only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A7F with a worn hybrid battery module
A 2010 Civic Hybrid owner complaint reports the IMA and check engine lights, with the dealer reading P0A7F as premature battery module deterioration and replacing the module. The lights came back later. Other Civic Hybrid owners describe the same. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P0A80 from an incorrect high voltage battery
Honda bulletin A18-116 says that if an incorrect high voltage battery is installed, P0A80 is set and the hybrid battery pack needs replacing, on some Honda hybrids. A related dealer message announces an emissions recall for P0A80. Check for open recalls with a dealer. High voltage parts are dangerous, so leave battery work to a qualified technician. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AE1 and P1437 from a failing motor power inverter
Honda bulletin A20-030 says the Civic Hybrid motor power inverter can fail from a defective solder joint and set one or more codes including P0AE1 and P1437. It extends coverage to 15 years or 150,000 miles. Some owners lost drive power or stalled in traffic and were told their VIN was not on the bulletin. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1399 with a rough-running engine at 40 to 70 mph
Honda bulletin 060103 covers some Honda and Acura models from 2000 to 2003, including the Odyssey, Pilot, TL, CL and MDX. The engine runs rough at 40 to 70 mph with misfire codes and P1399 stored, and the repair is described as service tips. A mechanic also cites valve adjustment or a blocked EGR passage on a 2003 Pilot. The summary we read is from NHTSA only, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1440 from a defective inverter solder joint
Honda bulletin A20-030 says a defective solder joint can fail the motor power inverter on the 2012 to 2015 Civic Hybrid and set P1440 along with other codes. Warranty coverage is extended to 15 years from the original date. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1456 from EVAP leaks and the fuel cap
Several Honda and Acura bulletins cover P1456 as an EVAP control system leak in the fuel tank system. They give an EVAP function test and leak testing, and say a binding, loose, missing or incorrect fuel fill cap can set the code on some models. Only the NHTSA summaries were read. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1457 from an EVAP leak at the canister system
Several Honda group bulletins name P1457 as an EVAP canister system leak on some Honda and Acura models. They point to a leak at the canister, a slow fuel vent module on the 2001 to 2002 Civic and an EVAP bypass solenoid valve on the 2002 S2000. We read only the NHTSA summaries. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1491 from the EGR system
Honda bulletin 090199 covers troubleshooting EGR codes including P1491 on the 1994 to 1996 Accord and 1995 to 1996 Odyssey. For the Odyssey, later Honda EGR bulletins and a warranty extension also name these codes. Check the EGR system first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1491 from EGR valve contamination or a clogged port
Honda warranty extension 00009 says EGR valve contamination or port clogging may cause P1491 or hesitation on 1999 to 2003 Odyssey and 2003 Pilot models. A second Honda bulletin also names the code on the Pilot. We only read the NHTSA summary. Check the EGR valve and its passages for carbon first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1740 with a flashing D light
An owner of a 2002 Honda Odyssey reports a Honda dealer reading P1740 as a 4th pressure switch failure with a flashing D light, and a 2004 Pilot owner reports the same reading. The source is owner reports to NHTSA, not a bulletin.
P1750 read as a clutch pressure failure
A NHTSA complaint for a 2002 Odyssey quotes a dealer readout of P1750 as a clutch pressure failure, and the dealer recommended a clutch pressure control solenoid. Other Odyssey owners report slipping and a transmission replacement. The source is owner reports, not a bulletin.
P1751 with the D4 and TCS lights and a shift problem
An owner complaint on a 2001 Honda Accord reports the D4 and TCS lights and a shift problem with P1751, which the owner reads as a 2-3 shift malfunction. The source is owner reports and it needs testing to confirm.
P2101 with failsafe mode and lack of power
A Honda bulletin from April 2015 covers an intermittent check engine light with P2101, failsafe mode and lack of power on 2012 to 2013 Ridgeline. Honda says the engine computer misreads the throttle system, and cycling the ignition usually restores normal running. Our summary of the bulletin does not name the fix, so ask a Honda dealer before replacing the throttle body. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2101 with the Accord not starting
Honda bulletin A19-034 covers 2013 to 2015 Accords that will not start, with P2101 stored. We only have the bulletin title, which does not give the cause or fix, so have a dealer check it against the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2135 from connector C281
Honda bulletin 04012004 points to connector C281 for P2135 on the 2003 to 2004 Accord. Inspect that connector for a poor fit or corrosion before replacing the throttle body or pedal sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2176 from a misread throttle position signal
Honda bulletin 13-042 says the check engine light comes on with P2176 because the PCM misreads the throttle position sensor signal on some 2013 V6 Honda models. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2197 with the air-fuel sensor signal stuck lean
Honda bulletin 604 names P2197 as the air-fuel sensor signal stuck lean on the 2004 Accord V6 only. The NHTSA summary we read does not state the cause. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P219A with misfire or catalyst codes on the V6
Honda bulletin A18-025 covers the check engine light with misfire codes or P219A on the V6 in the Odyssey, Pilot and Ridgeline. NHTSA files it under the fuel system, but the summary we read does not state the repair, so ask a Honda dealer whether it applies. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P219B with injector debris on the V6
Honda bulletin A17-036 covers the check engine light with catalyst codes and possibly misfire and imbalance codes such as P219B on the Odyssey, Pilot and Ridgeline V6. Honda bulletins tie these to injector debris and software, and dealers have replaced injectors. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P219E from a fuel injector leak
Honda bulletin A25-044 describes rough running and a rattle from a fuel injector leak on 2023 to 2025 CR-V Hybrid and Accord Hybrid models, and the bulletin title names oxygen sensor codes. It does not say outright that P219E belongs to this problem, so treat the link as tentative. We only read the NHTSA summary. If you smell fuel, have the injector area checked. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P219F from a leaking fuel injector on the Accord Hybrid
Honda A25-044 says a leaking fuel injector on the 2023 to 2025 Accord Hybrid and CR-V Hybrid can cause rough running, with P219F among the codes. Check for a rough run and fuel smell and have the injectors tested by a shop. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2422 from dirt in the canister vent tube
Honda bulletin A15-010 says P2422, an EVAP canister vent shut valve stuck closed, may be caused by dirt clogging the canister vent tube on 2013 to 2017 Accord and 2014 to 2015 Accord Hybrid models. Check the vent tube for dirt before replacing the valve. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2422 from a vent shut valve stuck closed
Honda bulletin A20-056 covers the MIL on with P2422 on the 2016 to 2022 Pilot and 2019 to 2022 Passport, using the same vent shut valve stuck closed wording as an earlier Honda bulletin. We only read the NHTSA summary. Check the EVAP vent shut valve first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2422 from a fuel tank pressure sensor vent joint
Honda bulletin 12-028 covers the check engine light with P2422 on the 2011 to 2012 Ridgeline. It says the vent end joint of the fuel tank pressure sensor may have been installed upside down, letting moisture in and blocking the vent. Check that joint first. A later Honda bulletin also names this code. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2583 with a false Radar Obstructed message
Honda bulletin A17-064 ties P2583, a false Radar Obstructed message and adaptive cruise speed fluctuation on the 2017 CR-V to a radar software issue. A later Honda bulletin has the radar mounting clips and bracket inspected if the problem persists after the radar is re-aimed. The radar supports driver assistance, so have it checked by a dealer or qualified shop. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2602 from a sticking electric coolant pump
Honda's bulletin covers the check engine light with P2602, an electric engine coolant pump circuit low voltage fault, on the 2014 Accord Plug-in Hybrid. It says the electric water pump may stick under certain conditions and set the code. Four 2014 to 2015 Accord and Accord Hybrid owners report the speed limited to about 40 mph and pump replacement quotes. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2638 from a missed idle learn procedure
Honda service news A15110F says that on a low-mileage 2016 Pilot with the check engine light on and the gear position indicator blinking, P2638 is likely because the idle learn procedure was not done properly before delivery. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2646 from the rocker arm oil pressure switch
Honda bulletin A13-021 says the rocker arm oil pressure switch may fail intermittently and may need replacing for P2646 and related codes. It lists the Element and Civic Si. Check the oil level first. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2646 named with related valve control codes
Honda bulletin 205 names P2646 together with other valve control codes on the 2004 CR-V. The NHTSA summary does not give the repair, so check the oil level and condition and read all stored codes together. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2652 on 2017 Honda models with valve pause and rocker arm switch faults
A Honda dealer message says Honda is searching for 2017 Odyssey, Pilot and Ridgeline vehicles with the check engine light on and P2652 stored, possibly with rough running. The codes are a rocker arm oil pressure switch stuck on and a valve pause system stuck off. Honda asks dealers to inspect the vehicle before any repair. Owners of 2018 to 2019 Odysseys report switch replacement, and Pilot owners report lost power at highway speed. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P26A3 from engine computer software
Honda bulletin A18-090 says an engine computer software problem on the 2018 Clarity Plug-in Hybrid can turn on the warning light with P26A3, an electric water valve fault, and other codes. Ask a dealer for the software update before replacing the valve. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P26A3 from the electric water valve on the Accord Plug-in Hybrid
Honda bulletin A20-033 covers the check engine light with P26A3, an electric water valve malfunction, on the 2014 Accord Plug-in Hybrid. The summary we read does not give the repair, so ask a dealer about the bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P271E from a CVT primary belt software issue
Honda bulletin A21-046 covers the 2016 to 2020 HR-V. It says an incorrect PCM value can cause a pressure problem in the CVT and break the primary belt. New PCM software revises the belt load and adds P271E, so that early in a belt failure the D light flashes, the check engine light comes on and engine power is reduced, giving the owner time to reach a dealer. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P271E and early warning of CVT belt failure
A 2016 Honda HR-V owner complaint to NHTSA quotes Honda bulletin 21-046, which says P271E was added so that early in a CVT primary belt failure the D light flashes, the warning light comes on and power is reduced. The owner says the PCM update was done in July 2021, and other owners report limp mode and a failed CVT. The source is owner reports, not a bulletin.
P2817 and a flashing D light
Honda A19-047 says the D light flashes because P2817 is set for a pressure control solenoid stuck off. The TCM misreads drive pulley oil pressure as high though the pressure is within specification. It lists 2016 to 2019 Civic, CR-V, Accord and Odyssey models. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P3400 and P3497 with cylinder misfire codes
Honda bulletin A-13-055 covers the warning light with P3400 and P3497 and cylinder 1 to 4 misfire codes on the 2013 Pilot, linked to misfire and the rocker arms. Our notes say the Odyssey is also listed. Ask a dealer to check the bulletin for the VIN before other repairs. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P3400 with the cylinder pause system stuck off
A Honda dealer message asks dealers to report 2017 Odyssey, Pilot and Ridgeline vehicles with P3400, the valve pause system stuck off on bank 1, together with a rocker arm oil pressure switch code and possibly rough running, before any repair. Check the oil level first, then let the dealer inspect it before parts are replaced. We have not confirmed the message is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0029 read as a communication bus A performance fault
The source is an NHTSA owner complaint about a 2018 Accord. The owner wrote the readout as vehicle communication bus A performance, U0029. There is no dealer detail, so this is a single owner report and not a confirmed cause.
U0104 with driver-assist systems switching off
An NHTSA owner complaint on a 2018 Honda Odyssey says all safety systems randomly disable while driving, and the reader showed U0104 as no communication with the cruise control module. Other owners report driver-assist and safety systems switching off with this code. Have the vehicle inspected. The source is owner reports, so this is labelled vehicle data and has not been independently verified.
U0104 with hard shifting and several warning lights
An owner complaint filed with NHTSA on a 2019 Passport reports hard shifting with the adaptive cruise, lane keep, transmission and auto high beam lights on, and a dealer scan that found U0104. A transmission flush did not help. The source is an owner report that has not been independently verified. Check battery and ground connections before looking at the modules.
U0122 lost communication with a control module
A 2018 Honda Accord owner told NHTSA (ODI 11442355) that the dealer read U0122 as lost communication with the vehicle dynamics control module. Check the module's connectors and power supply first. We have only one report. The source is owner reports, not a bulletin.
U0122 from an internal ABS modulator failure
An owner of a 2014 Honda CR-V told NHTSA that U0122 for an F-CAN malfunction was attributed to an internal failure in the ABS modulator unit, with several lights on and the ABS possibly not working. The ABS is safety critical, so have it inspected by a qualified shop. The source is a single owner report to NHTSA, not a confirmed diagnosis, so this is labelled vehicle data rather than confirmed by bulletin.
U0129 with all warning lights on
An owner of a 2017 Honda CR-V told NHTSA that all warning lights came on at start-up. The dealer read U0129 as lost communication with the braking system, which it attributed to the A/C control unit. The brakes are safety critical, so have the vehicle inspected by a qualified shop. The source is a single owner report to NHTSA, not a confirmed diagnosis, so this is labelled vehicle data rather than confirmed by bulletin.
U0129 with many warning lights
One owner told NHTSA about many warning lights and an electronic braking alert on a bumpy road on some Honda hybrids, with dealer codes including U0129. The dealer blamed an intermittent camera. This is an owner report, not a bulletin. Braking alerts relate to safety systems, so have the vehicle inspected. The source is owner complaints, so it is labelled vehicle data rather than confirmed by bulletin.
U0151 from internal corrosion in the SRS unit
Honda bulletin A16-006 says the SRS unit on the 2008 to 2010 Accord can corrode inside and fail, turning on the SRS light, and the airbags will not deploy in a crash while the unit has failed. The unit is replaced if U0151 or certain SRS codes are stored, with coverage extended to 15 years under a related bulletin. Have a dealer inspect it rather than working on it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0155 with the check engine light on newer Honda models
Honda bulletin A21-021 covers the check engine light with U0155, lost communication with the gauge control module, on the 2021 and 2022 Accord, HR-V and Odyssey. We only read a truncated summary, which gives no cause or fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0199 blamed on a non-genuine splice in the driver's door harness
A 2020 Honda Accord Hybrid owner told NHTSA that a dealer linked U0199, lost communication with the driver's door module, to a non-genuine quick-splice connector in the driver's door harness. This is the dealer's view as relayed by the owner, and it is a single report that is not verified.
U0416 stored after the battery is disconnected or jumped
Honda tech line summary ATS161223 says the 2017 CR-V stores U0416 and a steering angle code whenever the battery is disconnected, jumped or replaced. Bulletin A17-064 adds a radar software update. Because these codes involve the stability and brake system, have a dealer confirm the cause rather than clearing it and moving on. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0416 and the VSA modulator on the Accord
Owner complaints quote U0416 on the Accord, and on a 2014 Accord the dealer read it with a VSA solenoid valve code as a VSA brake actuator failure and replaced the VSA modulator after all the dashboard lights came on. This is part of the braking system, so have it inspected. The source is owner reports to NHTSA, not a bulletin.
U0423 with an Auto High Beam problem message
Honda ATS171001 is a tech line summary for the 2017 CR-V of an Auto High Beam Problem message on the driver information display with U0423, a gauge control module malfunction. It says the issue is under investigation, and only the NHTSA summary was read, so no fix is given. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U3000 from an internal airbag unit fault
Honda bulletin A21100B covers U3000 stored as an internal failure of the airbag (SRS) unit on many 2020 to 2021 Honda models. Honda says several causes can set it and gives troubleshooting to find the failed part. This is an airbag system, so have it inspected by a dealer rather than working on it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U3000 with the brake light blinking after setting the parking brake
Honda Techline ATS160713 covers the 2016 Civic, where the brake indicator blinks after the ignition is off and the electric parking brake is applied, and U3000 may be set. We only have a short summary, which does not give the fix. The parking brake is part of the brake system, so have it inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U3003 with brake and parking brake warnings
An owner of a 2019 Honda CR-V reports brake, parking brake and battery warnings while driving, and a dealer finding U3003, low voltage at the brake booster power circuit, then replacing the electric brake booster. The battery later failed testing too, so have the battery and charging system tested along with the brakes. The source is owner reports from the NHTSA complaint file, not a bulletin.
U3006 for an open control module power circuit
A 2018 Honda Accord owner told NHTSA (ODI 11442364) about U3006, read as a control module input power circuit open. Check the module's fuse, power feed and connectors first. We have only one report. The source is owner reports, not a bulletin.
U3006 with stalling in traffic
One owner told NHTSA about intermittent stalling in traffic with U3006, an ECU power source failure code, on some Honda models. This is a single owner report, not a bulletin. Check the battery, its terminals and the ground connections first. The source is owner complaints, so it is labelled vehicle data rather than confirmed by bulletin.
P0301: Misfire detected in cylinder 1
- Accord 2008–2012 · Supported by vehicle data · 1 bulletin
- Crosstour 2010–2012 · Supported by vehicle data · 1 bulletin
- Odyssey 2008–2013 · Supported by vehicle data · 2 bulletins
- Pilot 2009–2013 · Supported by vehicle data · 1 bulletin
P0304: Misfire detected in cylinder 4
- Accord 2008–2012 · Supported by vehicle data · 1 bulletin
- Crosstour 2010–2012 · Supported by vehicle data · 1 bulletin
- Odyssey 2008–2013 · Supported by vehicle data · 2 bulletins
- Pilot 2009–2013 · Supported by vehicle data · 1 bulletin
P0303: Misfire detected in cylinder 3
- Accord 2008–2012 · Supported by vehicle data · 1 bulletin
- Crosstour 2010–2012 · Supported by vehicle data · 1 bulletin
- Odyssey 2008–2013 · Supported by vehicle data · 2 bulletins
- Pilot 2009–2013 · Supported by vehicle data · 1 bulletin
P0302: Misfire detected in cylinder 2
- Accord 2008–2012 · Supported by vehicle data · 1 bulletin
- Crosstour 2010–2012 · Supported by vehicle data · 1 bulletin
- Odyssey 2008–2013 · Supported by vehicle data · 2 bulletins
- Pilot 2009–2013 · Supported by vehicle data · 1 bulletin
P0741: Torque converter clutch not engaging as commanded
- Accord 2017 · Supported by vehicle data · 1 bulletin
- Odyssey 2017 · Supported by vehicle data · 1 bulletin
- Pilot 2017–2018 · Supported by vehicle data · 1 bulletin
B0001: Driver front airbag first-stage firing circuit fault
- Civic 2012–2014 · Supported by vehicle data
B0020: Airbag firing circuit fault, usually the driver-side seat airbag (varies by maker)
- Accord 2018–2020 · Supported by vehicle data · 1 bulletin
- CR-V 2019–2020 · Supported by vehicle data · 1 bulletin
B12C5: Engine start/stop switch failure (Honda, Acura)
- HR-V 2016–2018 · Supported by vehicle data
C0040: Right front wheel speed sensor circuit (GM) or brake lamp switch (Honda)
- Pilot 2020 · Supported by vehicle data
C0051: Steering wheel position (angle) sensor signal fault
- CR-V 2019 · Supported by vehicle data
C0265: ABS computer reports a fault in its relay circuit
- Passport 1998–2001 · Supported by vehicle data · 1 bulletin
P0010: Intake camshaft actuator (VVT solenoid) circuit fault, bank 1
- Accord 2014–2015 · Supported by vehicle data · 1 bulletin
P0035: Turbo or supercharger bypass valve control circuit reads high
- Civic 2017–2018 · Supported by vehicle data · 2 bulletins
P0087: Fuel pressure in the rail or supply system is lower than the engine computer requested
- Civic Type R 2019 · Supported by vehicle data · 1 bulletin
- Fit 2019 · Supported by vehicle data · 1 bulletin
P0107: Manifold pressure or barometric pressure sensor signal too low
- Odyssey 1996–2002 · Supported by vehicle data · 1 bulletin
P0122: The throttle position sensor A signal voltage is below its normal range
- CR-V 2002–2004 · Supported by vehicle data · 1 bulletin
P0131: The engine computer sees a voltage that is too low on the upstream oxygen sensor circuit for bank 1
- Civic 1998–2000 · Supported by vehicle data · 1 bulletin
P0133: Upstream oxygen sensor on bank 1 reacts too slowly
- Accord 1998–2000 · Supported by vehicle data · 1 bulletin
- Civic 1998 · Supported by vehicle data · 1 bulletin
P0134: The upstream oxygen sensor on bank 1 is giving the computer no signal activity
- CR-V 2007–2008 · Supported by vehicle data · 1 bulletin
P0236: Turbo boost sensor reading does not make sense
- Accord 2018–2021 · Supported by vehicle data · 1 bulletin
P0325: Knock sensor 1 circuit fault (bank 1 or single sensor)
- Accord 2003–2004 · Supported by vehicle data · 1 bulletin
- Odyssey 1999–2004 · Supported by vehicle data · 1 bulletin
- Pilot 2003–2004 · Supported by vehicle data · 1 bulletin
P0326: Knock sensor 1 range/performance, bank 1: the knock sensor signal is outside what the engine computer expects
- Civic 2016 · Supported by vehicle data · 1 bulletin
P0335: Crankshaft position sensor A circuit fault
- Accord 2013–2016 · Supported by vehicle data · 1 bulletin
- CR-V 2015–2016 · Supported by vehicle data · 1 bulletin
P0339: Crankshaft position sensor A circuit intermittent
- Accord 2013–2023 · Supported by vehicle data · 2 bulletins
- CR-V 2015–2016 · Supported by vehicle data · 1 bulletin
P0344: Camshaft position sensor A circuit intermittent, bank 1 or single sensor: the cam sensor signal drops out or comes and goes
- Odyssey 2005–2009 · Supported by vehicle data · 1 bulletin
P0369: The bank 1 camshaft position sensor 'B' signal drops out intermittently
- All models 2016–2025 · Supported by vehicle data · 2 bulletins
P0401: Exhaust gas recirculation (EGR) flow insufficient detected
- Odyssey 1999–2003 · Supported by vehicle data · 1 bulletin
P0404: The EGR valve or its position sensor is not working within the expected range
- Odyssey 2011–2014 · Supported by vehicle data · 1 bulletin
P0441: EVAP purge flow incorrect
- All models 2019–2024 · Supported by vehicle data · 1 bulletin
P0497: EVAP system low purge flow
- Civic 2001–2005 · Supported by vehicle data · 1 bulletin
P04F1: EVAP system low purge flow: the computer sees less fuel vapour moving from the charcoal canister to the engine than expected
- CR-V 2017–2022 · Supported by vehicle data · 1 bulletin
- Pilot 2019 · Supported by vehicle data
P0501: The vehicle speed sensor signal is out of range or does not make sense
- CR-V 1998–1999 · Supported by vehicle data · 1 bulletin
P0560: The computer sees system voltage outside the range it expects
- Accord 2001 · Supported by vehicle data · 1 bulletin
P0562: System voltage low
- Accord 2017 · Supported by vehicle data · 1 bulletin
P060A: The engine computer's monitoring processor reports a performance fault
- Accord 2023–2024 · Supported by vehicle data · 1 bulletin
P0685: ECM/PCM power relay control circuit open
- Accord 2007 · Supported by vehicle data
- CR-V 2015 · Supported by vehicle data
P0706: Transmission range sensor signal out of range or not plausible
- CR-V 2004–2005 · Supported by vehicle data · 1 bulletin
P0710: Transmission fluid temperature sensor A circuit fault
- CR-V 2002 · Supported by vehicle data · 1 bulletin
- Odyssey 2002 · Supported by vehicle data · 1 bulletin
P0716: Input or turbine speed sensor signal out of range
- Odyssey 2018–2019 · Supported by vehicle data · 1 bulletin
- Pilot 2016–2017 · Supported by vehicle data · 2 bulletins
P0725: Engine speed signal to the transmission computer is missing or faulty
- Accord 1995–1997 · Supported by vehicle data · 1 bulletin
P0730: Transmission gear ratio does not match the selected gear
- Civic 2001–2004 · Supported by vehicle data · 1 bulletin
P0740: Torque converter clutch control circuit fault
- Civic 1998–2000 · Supported by vehicle data · 1 bulletin
- Odyssey 1999–2004 · Supported by vehicle data · 1 bulletin
P0753: Shift solenoid A electrical fault
- Accord 1998–2002 · Supported by vehicle data · 1 bulletin
P0763: Shift solenoid C electrical fault
- Odyssey 2018 · Supported by vehicle data
P0780: Transmission did not complete a shift the way the computer expected
- Odyssey 2001–2004 · Supported by vehicle data · 2 bulletins
P0793: No signal from the intermediate shaft speed sensor
- Civic 2015 · Supported by vehicle data
- HR-V 2016–2022 · Supported by vehicle data
P0810: Clutch position control error
- Passport 2019 · Supported by vehicle data
- Pilot 2019 · Supported by vehicle data
P0848: Transmission fluid pressure sensor or switch B is reporting a high input
- Odyssey 2016 · Supported by vehicle data
P0973: Shift solenoid A control circuit low
- Accord 2005 · Supported by vehicle data · 2 bulletins
- CR-V 2005 · Supported by vehicle data · 1 bulletin
P0A3F: Drive motor A rotor position sensor circuit fault
- Civic 2012–2015 · Supported by vehicle data · 1 bulletin
P0A78: The inverter that powers hybrid drive motor A is not performing as expected
- Civic 2012–2015 · Supported by vehicle data · 1 bulletin
P0A7F: The hybrid battery pack is worn or one of its modules has deteriorated
- Civic 2006–2010 · Supported by vehicle data
- CR-Z 2010–2012 · Supported by vehicle data · 1 bulletin
- Insight 2010–2012 · Supported by vehicle data · 1 bulletin
P0A80: Hybrid battery pack flagged for replacement
- Accord 2018 · Supported by vehicle data · 1 bulletin
P0AE1: A fault in the hybrid battery precharge contactor circuit; Honda lists it as a bypass contactor fault
- Civic 2012–2015 · Supported by vehicle data · 1 bulletin
P1399: On Honda and Acura, a random misfire that the computer cannot pin on one cylinder
- Odyssey 2002–2003 · Supported by vehicle data · 1 bulletin
- Pilot 2003 · Supported by vehicle data · 1 bulletin
P1437: On Honda hybrids, a short circuit in the motor power inverter module
- Civic 2012–2015 · Supported by vehicle data · 1 bulletin
P1440: On Honda and Acura hybrids, motor power inverter module output circuit malfunction; on Toyota, secondary air injection control valve circuit, bank 1
- Civic 2012–2015 · Supported by vehicle data · 1 bulletin
P1456: Honda: leak found in the EVAP control system on the fuel tank side
- Accord 1996–2006 · Supported by vehicle data · 1 bulletin
- CR-V 2002–2004 · Supported by vehicle data · 1 bulletin
P1457: On Honda and Acura, the engine computer found a leak or fault in the EVAP canister side of the fuel vapor system
- Accord 1998–2000 · Supported by vehicle data · 1 bulletin
- Civic 2001–2002 · Supported by vehicle data · 1 bulletin
- S2000 2002 · Supported by vehicle data · 1 bulletin
P1491: On Honda, the EGR valve does not lift enough; on Nissan, a fault in the EVAP vacuum cut valve bypass valve
- Accord 1994–1996 · Supported by vehicle data · 1 bulletin
- Odyssey 1995–2004 · Supported by vehicle data · 3 bulletins
- Pilot 2003–2004 · Supported by vehicle data · 2 bulletins
P1740: Lock-up or overdrive solenoid performance (Dodge) or 4th clutch pressure switch fault (Honda)
- Odyssey 2002 · Supported by vehicle data
P1750: Mechanical problem in the clutch pressure control hydraulics of a Honda or Acura automatic transmission
- Odyssey 2002–2003 · Supported by vehicle data
P2101: The engine computer sees a problem in the throttle actuator motor circuit or the motor's response, so actual throttle position doesn't match what was commanded
- Accord 2013–2015 · Supported by vehicle data · 1 bulletin
- Ridgeline 2012–2013 · Supported by vehicle data · 1 bulletin
P2135: Two throttle or pedal position sensor signals (A and B) that should agree with each other don't
- Accord 2003–2004 · Supported by vehicle data · 1 bulletin
P2176: Throttle closed position has not been learned
- Accord 2013 · Supported by vehicle data · 1 bulletin
P2197: The upstream oxygen or air-fuel sensor on bank 2 is stuck reading lean, or its signal does not make sense
- Accord 2004 · Supported by vehicle data · 1 bulletin
P219A: The engine computer has detected that the cylinders on bank 1 are running at noticeably different air-fuel ratios from each other
- Odyssey 2018–2019 · Supported by vehicle data · 2 bulletins
- Pilot 2016–2019 · Supported by vehicle data · 2 bulletins
- Ridgeline 2017–2019 · Supported by vehicle data · 1 bulletin
P219B: The engine computer has detected that one or more cylinders on bank 2 are running a noticeably different air-fuel mixture from the others
- Odyssey 2017–2019 · Supported by vehicle data · 2 bulletins
- Pilot 2016–2019 · Supported by vehicle data · 3 bulletins
P219E: Cylinder 3 air-fuel ratio imbalance
- Accord 2023–2025 · Supported by vehicle data · 1 bulletin
P219F: Cylinder 4 is running at a noticeably different air-fuel ratio from the other cylinders, so the computer flags an imbalance on that cylinder
- Accord 2023–2025 · Supported by vehicle data · 1 bulletin
P2422: EVAP vent valve will not open, so fresh air cannot get into the fuel vapour system
- Accord 2013–2017 · Supported by vehicle data · 1 bulletin
- Pilot 2016–2022 · Supported by vehicle data · 1 bulletin
- Ridgeline 2011–2022 · Supported by vehicle data · 2 bulletins
P2583: Adaptive cruise control distance (radar) sensor signal or alignment fault
- CR-V 2017–2018 · Supported by vehicle data · 2 bulletins
P2602: Coolant pump control circuit low voltage
- Accord 2014–2015 · Supported by vehicle data · 1 bulletin
P2638: Engine and transmission computers disagree on the torque signal
- Pilot 2016 · Supported by vehicle data · 1 bulletin
P2646: Variable valve rocker arm not working as commanded (bank 1)
- CR-V 2004 · Supported by vehicle data · 1 bulletin
- Element 2005–2010 · Supported by vehicle data · 1 bulletin
P2652: Rocker arm oil pressure switch B (bank 1) fault, as Honda describes it
- Odyssey 2017–2019 · Supported by vehicle data · 1 bulletin
- Pilot 2017 · Supported by vehicle data · 1 bulletin
- Ridgeline 2017 · Supported by vehicle data · 1 bulletin
P26A3: Engine coolant bypass valve A range or performance problem
- Accord 2014 · Supported by vehicle data · 1 bulletin
- Clarity 2018 · Supported by vehicle data · 1 bulletin
P271E: Early CVT primary belt wear warning on Honda HR-V CVTs
- HR-V 2016–2020 · Supported by vehicle data · 2 bulletins
P2817: Pressure control solenoid H performance or stuck off fault in an automatic transmission
- Accord 2016–2019 · Supported by vehicle data · 1 bulletin
- Civic 2016–2019 · Supported by vehicle data · 1 bulletin
- CR-V 2016–2019 · Supported by vehicle data · 1 bulletin
- Odyssey 2016–2019 · Supported by vehicle data · 1 bulletin
P3400: Cylinder deactivation system, bank 1: the engine computer sees the hardware that shuts off cylinders on bank 1 not doing what it was told
- Odyssey 2017 · Supported by vehicle data · 1 bulletin
- Pilot 2013 · Supported by vehicle data · 2 bulletins
P3497: Cylinder deactivation system, bank 2: the engine computer sees the hardware that shuts off cylinders on bank 2 not doing what it was told
- Pilot 2013 · Supported by vehicle data · 2 bulletins
U0029: Vehicle communication network bus A performance fault
- Accord 2018 · Supported by vehicle data
U0104: A module on the network stopped hearing the cruise control module
- Odyssey 2018–2020 · Supported by vehicle data
- Passport 2019 · Supported by vehicle data
U0122: U0122 is a generic network code: a module lost communication with the vehicle dynamics control module, which runs stability control and often shares the ABS hardware
- Accord 2018 · Supported by vehicle data
- CR-V 2014 · Supported by vehicle data
U0129: U0129 is a generic network code: a module on the vehicle network lost communication with the brake control module (ABS or stability module), usually stored by the engine, body or instrument computer
- Accord 2024 · Supported by vehicle data
- CR-V 2017 · Supported by vehicle data
U0151: Lost communication with the restraints (airbag) control module
- Accord 2008–2010 · Supported by vehicle data · 2 bulletins
U0155: Lost communication with the instrument panel cluster
- Accord 2021–2022 · Supported by vehicle data · 1 bulletin
U0199: Lost communication with door control module A
- Accord 2020 · Supported by vehicle data
U0416: A module received implausible data from the stability control (vehicle dynamics) module
- Accord 2014–2018 · Supported by vehicle data
- CR-V 2017 · Supported by vehicle data · 2 bulletins
U0423: A module received invalid data from the instrument panel control module
- CR-V 2017 · Supported by vehicle data · 1 bulletin
U3000: Manufacturer code: on Ford, Honda, Acura and Mazda, the module that stored it found a fault inside itself
- All models 2020–2021 · Supported by vehicle data · 1 bulletin
- Civic 2016 · Supported by vehicle data · 1 bulletin
U3003: Manufacturer code: on Ford, Lincoln, Mazda and Honda, the module that stored it saw its battery supply voltage outside the allowed range, usually too low
- CR-V 2019 · Supported by vehicle data
U3006: On Honda and Acura vehicles, U3006 is a network code set when a control module sees a power supply problem on its input power circuit (low voltage or an open circuit), with the suffix such as -13 or -16 showing which
- Accord 2018 · Supported by vehicle data
- Pilot 2021 · Supported by vehicle data
C003A: Right rear wheel speed sensor circuit fault
- Accord 2018 · Possible — needs testing
P0088: Fuel rail pressure higher than the engine computer wants
- Accord 2015 · Possible — needs testing · 1 bulletin
P05A0: Active grille shutter stuck or out of position: the motorised shutters in front of the radiator are not reaching their commanded angle
- CR-V 2017 · Possible — needs testing
P1751: Transmission code whose meaning differs: a hydraulic malfunction on Honda and Acura, a control relay fault on Mitsubishi
- Accord 2001 · Possible — needs testing
Sources and review
- Honda dealer message: SRS lamp with DTC 11-1X, 11-2X or B0001-13, replace the driver's airbag module
- Dealer message: 2018–2020 Accord and 2019–2020 CR-V with SRS light and DTC B0020-13 or B0028-13
- Honda owner notification letter: may not start on first press of ENGINE START/STOP, DTC B12C5; warranty extended (2016-2018 HR-V)
- NHTSA complaint ODI 11746593: 2018 Honda Accord, C003A-62
- NHTSA complaint ODI 11645269: 2020 Honda Pilot warning lights and brakes
- NHTSA complaint ODI 11353069: 2019 Honda CR-V damaged harness
- Honda 1203: DTC C0265, open relay circuit (1998-2001 Passport)
- Honda A16-014: MIL with P100C and P0010 - PGM-FI software update
- Honda bulletin A18-044: P0035 (turbocharger bypass control solenoid valve circuit high) with Rev Match / Emissions System Problem messages; coupler wire oscillates and opens the circuit
- American Honda Motor Co. bulletin A21-022: Fuel pump impeller swelling (P0087)
- American Honda Motor Co. bulletin A21-023: Fuel pump impeller swelling (P0087)
- Dealer message: MIL comes on with DTC P0088 (service bulletin 15-036)
- Honda 04004: Rough idle at cold start with P0107 or P0108
- Honda 04-008: MIL on with DTC P0122 (CR-V)
- Honda 03-076: MIL with P0131 or poor engine performance (Civic)
- Honda 99-049, MIL on with DTC P0133 stored in the PCM, 1998 Civic
- Honda 00017, MIL with P0133 primary heated oxygen sensor slow response, Accord
- SB-08-067: Honda bulletin: MIL on with P0134, P0135, P0171 or P1157
- Honda A21-049: MIL on with P0236 (Accord)
- Honda warranty extensions A13-078 to A13-082: spark plug fouling and misfire codes P0301-P0304
- Honda 105: P0325 from rodent damage to the knock sensor harness
- Honda A16-018: PCM misreads knock sensor signals and sets P0326, 2016 Civic
- Honda A16-011: corrosion at the CKP sensor connector, P0335 and/or P0339
- Honda A23-048: no start, rough idle or rpm hunting with P0017 or P0339, 2023 Accord Hybrid
- Honda SB 09-042: P0344 from a camshaft position sensor damaged by excessive camshaft end play, 2005-2009 Odyssey
- Honda A18010I: Reduced engine power with MIL, DTC P0369 and excessive camshaft end play
- Honda warranty extension 00009: EGR valve contamination or EGR port clogging can cause P0401, P1491 or hesitation/surge (1999–2003 Odyssey, 2003 Pilot)
- 2011–2014 Odyssey: MIL with P0404 EGR valve circuit range/performance (bulletin A13-095)
- Honda 23-091: P0441 from an intermittently sticking purge control solenoid valve
- Honda 1105: P0497, low purge flow or internal vacuum leak
- Honda A21-081: MIL with P0441 and P04F1 (CR-V)
- NHTSA complaint ODI 11563010
- Honda service bulletin 01019: cruise control surge, erratic speedometer or MIL with P0501 (1998-1999 CR-V)
- 181000: MIL with code 34 (P0560) at pre-delivery inspection
- Honda ServiceNews A16-026: P0562 in hybrid control modules with the MIL off and no symptom (2017 Accord)
- NHTSA complaint ODI 11748525: Honda CR-V 2017, dealer report P05A0 Active Grille Shutter malfunction
- Honda bulletin A25-025: Multiple warning lights, possible fail-safe mode, P060A set
- NHTSA complaint ODI 11375673: 2007 Honda Accord, engine shuts off at stops, P0685
- NHTSA complaint ODI 11768416: 2015 Honda CR-V, stalls at city speeds, dealer confirmed P0685
- Honda 05-058: MIL with P0706 or P1706, engine may not crank
- Honda Service News 603: P0710 and the ATF temperature sensor
- Honda A19-004: MIL with P0716 after a 9th or 8th to 7th downshift
- Honda A19-124: Harsh or jerky upshifts or MIL with P0716
- Honda 01-07-01: tachometer fluctuation and/or A/T DTC P0725
- Honda 04-036: 2001–2004 Civic cannot move in Drive, MIL or blinking D with P0730
- Honda Service News (May 2004 item 05012004): do not replace the solenoid for P0740
- Honda Service News 04012004: P0740 after transmission removal and installation
- Honda A23-078: torque converter lock-up piston crack, flashing D and P0741
- Honda 631002: Troubleshooting automatic transmission codes P0753, P0758, P1705, P1768
- NHTSA complaint ODI 11713730: 2018 Honda Odyssey, P0763
- Honda 06012004: P0780 after a solenoid or automatic transmission is removed and replaced
- NHTSA complaint ODI 11322773: 2015 Honda Civic, P0793
- NHTSA complaint ODI 11761109: 2022 Honda HR-V, P0793
- NHTSA complaint ODI 11711665: 2019 Honda Pilot, P0810
- NHTSA complaint ODI 11460083: 2019 Honda Passport, P0810
- NHTSA complaint ODI 11437861: 2016 Honda Odyssey scan readout
- Honda 05071: MIL with P0973, short in shift solenoid valve A circuit
- Honda A20-030 (NHTSA 10184658)
- Motor power inverter warranty extension, 2012–2015 Civic Hybrid (bulletin A20-030)
- Honda service bulletin: IMA battery software memory effect and P0A7F
- NHTSA complaint ODI 1019213: 2010 Honda Civic Hybrid
- Honda A18-116 (NHTSA 10152399)
- A20-030: motor power inverter warranty extension (Civic Hybrid)
- Honda service bulletin 060103 (NHTSA 10002700 and 10002693): engine runs rough 40 to 70 mph with P0301-P0306 and P1399
- Honda bulletin A20-030: motor power inverter warranty extension, Civic Hybrid
- Honda and Acura service bulletins on DTC P1456 (EVAP control system leakage, fuel tank system)
- Honda and Acura service bulletins naming DTC P1457 (EVAP canister system leak)
- Honda 090199: troubleshooting EGR codes P0401 and P1491
- Honda 00009: warranty extension, EGR valve contamination or port clogging may cause P0401, P1491 or hesitation
- NHTSA complaint ODI 10418028: 2002 Honda Odyssey dealer code readout
- NHTSA complaint 612436: 2002 Honda Odyssey, P1750
- NHTSA complaint 1999846: 2001 Honda Accord, P0730 and P1751
- Service Bulletin (2015-04-23): MIL with P2101, possible failsafe and lack of power (Ridgeline)
- A19-034: Engine will not start, with P2101 (Accord)
- 04012004: P2135: check connector C281 (Accord)
- Honda 13-042, MIL with P2176, throttle position signal misread
- Honda 604: DTC P2195 or P2197, LAF signal stuck lean, V6 only
- A18-025: MIL with P0300-P0306 or P219A/B (Odyssey, Pilot, Ridgeline)
- Honda A17-036: MIL with P0430 and possibly P030X/P219A/P219B (Odyssey, Pilot, Ridgeline)
- Honda A25-044: Rough running and rattle with P0134 or P0135 from fuel injector leak
- Honda A25-044: engine runs rough with P0134/P0135, possible fuel injector leak (Accord Hybrid, CR-V Hybrid)
- Honda A15-010: MIL on with P2422, dirt may clog the EVAP canister vent tube
- Honda A20-056: MIL on with P2422 on Pilot and Passport
- Honda 12-028: MIL on with P1454 and/or P2422 on Ridgeline
- Honda A17-064: radar software issue, P2583-76 misalignment and false "Radar Obstructed" on 2017 CR-V
- Honda service bulletin, MIL with DTC P2602 (2014 Accord Plug-in Hybrid), NHTSA 10118171
- Honda service news A15110F, A/T DTC P2638 and idle learn
- A13-021: MIL with P2646/P2651 or P2647/P2652 (rocker arm oil pressure switch)
- 205: DTC P2646, P2647, P2649 or P1009
- Honda dealer message ATI&01032022907, P2652 and P3400 on 2017 Odyssey, Pilot, Ridgeline (NHTSA 10206442)
- Honda A18-090: PCM software, P26A3 electric water valve
- Honda A20-033: MIL with P26A3 electric water valve malfunction
- Honda A21-046: CVT primary belt software update and DTC P271E (2016-2020 HR-V)
- NHTSA complaint 2061377: 2016 Honda HR-V, P271E
- Honda A19-047: P2817 and D light flashing (2016-2019 Civic, CR-V, Accord, Odyssey)
- Honda A-13-055: P0301-P0304, P3400 and/or P3497 with MIL on, 2013 Pilot
- Honda dealer message: 2017 Odyssey/Pilot/Ridgeline with P2652 and P3400 (Valve Pause System stuck off bank 1)
- NHTSA complaint ODI 11442348: 2018 Honda Accord
- NHTSA complaint ODI 2092695: 2018 Honda Odyssey
- NHTSA complaint ODI 2190761: 2019 Honda Passport
- NHTSA complaint ODI 11442355: 2018 Honda Accord
- NHTSA complaint ODI 11477246: 2014 Honda CR-V
- NHTSA complaint ODI 11298379: 2017 Honda CR-V
- NHTSA complaint ODI 11589674: 2024 Honda Accord Hybrid
- Honda A16-006: SRS unit internal corrosion
- Honda A21-021: MIL on with DTC U0155
- NHTSA complaint ODI 11685172: 2020 Honda Accord Hybrid
- Honda ATS161223: DTCs stored after battery disconnect, jump or replacement (2017 CR-V)
- NHTSA complaint 11684954: 2014 Honda Accord, VSA modulator with U0416-68
- Honda ATS171001 (NHTSA 10119589): Auto High Beam problem message with DTC U0423-68
- Honda A21100B: SRS DTC U3000-49 (internal failure of the SRS unit)
- Honda Techline ATS160713: Brake indicator blinking after applying the electric parking brake, U3000-49
- NHTSA complaint 11766302: 2019 Honda CR-V brake warnings with U3003-16
- NHTSA complaint ODI 11442364: 2018 Honda Accord
- NHTSA complaint ODI 11752657: 2021 Honda Pilot
- NHTSA ODI consumer complaints flat files
- NHTSA complaint ODI 11232061 (2014 Honda Civic)
- NHTSA complaint ODI 1666455 (2017 Honda HR-V)
- Honda bulletin ATS171102: P0035 with Rev Match or Emission System Problem; broken wire in the 2-pin solenoid connector likely
- NHTSA complaint ODI 11616513, 2018 Honda Civic: P0035 described as turbo bypass solenoid high voltage or circuit; car lost power with many warning lights
- Honda A25-023: MIL with DTC P0369 from PCM software misreading EX-VTC actuator operation as CMP sensor B noise
- NHTSA complaint ODI 11474249
- NHTSA complaint ODI 11761856
- NHTSA complaint ODI 10505068: 2007 Honda Accord, intermittent electrical faults, dealer found P0685 and updated the PCM
- Acura B19-003: MIL with P0716 after a 9th or 8th to 7th downshift
- Honda 161200: P0780, mechanical problem in the hydraulic system
- NHTSA complaint ODI 11653707: 2020 Honda HR-V, P0171 and P0793
- NHTSA complaint ODI 11620350: 2016 Honda Odyssey P0848 scan
- Honda 705: P0973, shift solenoid A short circuit
- NHTSA complaint ODI 904412: 2006 Honda Civic Hybrid
- NHTSA complaint ODI 2033317: 2015 Honda Civic Hybrid
- Q: OBD code P1399 (Honda Pilot)
- NHTSA complaint ODI 2096927: 2012 Honda Civic Hybrid
- NHTSA complaint ODI 2152043: 2013 Honda Civic Hybrid
- NHTSA complaint ODI 768976: 1998 Honda Accord, P1456 and P1457
- NHTSA complaint ODI 10132606: 2000 Honda Accord, P1457
- NHTSA complaint ODI 10315726: 1998 Honda Accord, P1456/P1457
- Honda 012704: request for visit, engine stumbling or surging, check engine light and codes
- NHTSA complaint ODI 10447125: 2004 Honda Pilot dealer code readout
- NHTSA complaint 752478: 2003 Honda Odyssey, P0740, P0730, P1750
- NHTSA complaint 868557: 2003 Honda Odyssey, P0710, P0780, P1750
- A17-036: MIL with P0430, possibly with P030X and P219A/P219B
- Honda A20-100: PCM software and injector debris; catalyst and imbalance DTCs (Pilot)
- Honda A21-010: PCM software and injector debris; catalyst and imbalance DTCs (Odyssey, Pilot, Ridgeline)
- NHTSA complaint ODI 11564228: 2019 Honda Pilot, dealer found P219B and said the fuel injectors needed replacement
- Honda A18080E: P2583-76 that persists after radar re-aim, inspect radar mounting clips and bracket
- NHTSA complaint ODI 10520128
- NHTSA complaint ODI 11210808
- NHTSA complaint ODI 11243240
- NHTSA complaint ODI 11616936
- NHTSA complaint ODI 11569885
- NHTSA complaint ODI 11701010
- NHTSA complaint ODI 11310976
- Honda A21-047: CVT drive belt warranty extension (2016-2020 HR-V)
- NHTSA complaint 2208603: 2016 Honda HR-V, P271E limp mode
- Honda service bulletin: misfire P0301-P0304 with P3400 (rocker arm oil pressure switch B) and/or P3497 (switch C), 2013 Odyssey/Pilot
- Honda P3400 P3497
- Honda A16-007: SRS unit warranty extension to 15 years
- Honda A17-064: millimeter wave radar software update (2017 CR-V)
- NHTSA complaint 11442358: 2018 Honda Accord, U0416-68
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
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