Infiniti OBD2 codes

B00A0 from the occupant detection sensor unit

Supported by vehicle data

Infiniti bulletin ITB19-024 covers B00A0 stored for the occupant detection sensor unit on the Q50. It matches the Nissan bulletin: a software check and a zero-point reset. This is part of the airbag system, so have it inspected by a dealer or qualified technician. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• B00A0: Occupant classification sensor or control unit fault

B1129 and B1134 for a side module open circuit

Supported by vehicle data

Infiniti bulletin ITB-12-034 covers B1129 and B1134 as right or left side module open codes on the 2003 to 2005 G35 sedan and coupe, and gives updated repair procedures. This is an airbag system, so have it inspected by a qualified shop rather than repairing it yourself. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• B1129: Right side airbag module circuit fault (Nissan and Infiniti)
• B1134: Front left side airbag module circuit open (Nissan and Infiniti)

C1116 with the VDC lamp on and a stop lamp switch circuit

Supported by vehicle data

Infiniti bulletin ITB18-006 links C1116 on the 2016 to 2017 QX60 without intelligent cruise to the VDC warning lamp and the stop lamp switch circuit, and says to install a harness jumper. Related Infiniti bulletins also adjust the brake switches. We only read the NHTSA summary. This involves the brake and stability system, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• C1116: Stop lamp switch circuit fault in the ABS system (Nissan)

C1130 when the ABS unit does not recognise an engine signal

Supported by vehicle data

Infiniti bulletin ITB16-047 gives diagnosis information for C1130 on the 2015 QX60. It describes the code as an ABS code for an engine computer output signal that is not recognised, and says engine codes should be dealt with first. This is a braking system, so have it inspected rather than repairing it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• C1130: ABS control unit not recognising an engine computer signal (Nissan and Infiniti)

P0036 diagnosed as a bank 2 A/F sensor heater fault

Supported by vehicle data

Nissan bulletin NTB17-090 says the service manual information for P0036 may be inaccurate on the 2016 and 2017 Altima and Pathfinder. It says to follow the bank 2 A/F sensor heater open or shorted procedure, and Infiniti's matching bulletin says the same for some Infiniti models. On the 6-cylinder engine, the sensor is therefore not the bank 1 downstream sensor. 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.

• P0036: A fault in the heater control circuit of the downstream oxygen sensor on bank 1

P0100 with the check engine light on a mass airflow sensor

Supported by vehicle data

Infiniti bulletin ITB01029 covers the check engine light with P0100 on 2000 to 2002 I30 and Q45 models. Later revisions add rough running, surging and low power. Only the NHTSA summary was read. Check the airflow sensor and its connector before replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P0100: Mass or volume air flow sensor circuit fault

P0140 from the rear oxygen sensor circuit

Supported by vehicle data

Infiniti bulletin ITB01-011A covers a check engine light with rear oxygen sensor codes, including P0140, on the 2000 to 2001 I30. Check the rear oxygen sensor and its wiring 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.

• P0140: The oxygen sensor behind the catalytic converter on bank 1 is not sending a signal the computer can use

P0140 from rear oxygen sensor bulletin

Supported by vehicle data

Infiniti bulletin ITB01-045 covers a check engine light with rear oxygen sensor codes including P0140 on some Infiniti models. We only have the NHTSA summary, which does not describe the repair. Check the rear oxygen sensors and their wiring first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P0140: The oxygen sensor behind the catalytic converter on bank 1 is not sending a signal the computer can use

P0448 at the EVAP canister vent control valve

Supported by vehicle data

Infiniti bulletin ITB19-012 covers P0448 at the EVAP canister vent control valve on the 2019 QX50. The summary says to reprogram the engine computer if applicable. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P0448: EVAP vent valve circuit shorted

P0448 that need the normal repair and a reprogram

Supported by vehicle data

Infiniti bulletin ITB19-027 covers the check engine light with P0448 among several codes on Q50, Q60 and QX60 models. If the listed engine computer part numbers apply, the summary says to do the normal diagnosis and repair for the stored code, then reprogram the engine computer. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P0448: EVAP vent valve circuit shorted

P0605 with cruise control that will not set

Supported by vehicle data

Infiniti bulletin ITB-13-13 links P0605 to cruise control that will not set on the 2009 to 2011 G37. We only read the NHTSA summary, which does not give the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P0605: The engine computer failed its own read-only memory check

P06DA fixed by replacing the engine room sub-harness

Supported by vehicle data

Infiniti bulletin ITB24-017A covers P06DA stored as current on the Q50 and related models. The fix it lists is to replace the engine room sub-harness. Inspect the wiring before replacing the oil pump. 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.

• P06DA: Oil pressure control solenoid circuit open or high resistance

P0710 stored in the ECM only

Supported by vehicle data

Infiniti bulletin ITB13019A covers the check engine light with P0710 stored in the ECM only on the 2013 G37. It says to compare the TCM part number against a table, and it matches the same condition in Nissan NTB13018A. 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.

• P0710: Transmission fluid temperature sensor A circuit fault

P0720 on the Q50 that points to the control valve

Supported by vehicle data

Infiniti bulletin ITB19-040 covers the warning light with P0720 on 2014 to 2015 Q50 models, which may also shift harshly or lack power. If diagnosis leads to the output speed sensor, Infiniti says to replace the control valve rather than the sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P0720: Transmission output shaft speed sensor circuit fault

P0793 that will not erase from the TCM

Supported by vehicle data

Infiniti bulletin ITB20-027 lists P0793 among permanent codes stored in the TCM of the 2019 QX50 that will not erase. The action is to replace the TCM if only the listed codes are stored and the erase procedure fails. 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.

• P0793: No signal from the intermediate shaft speed sensor

P1320 and spark knock from ignition coils on the I30

Supported by vehicle data

Infiniti bulletin ITB01-052 ties the check engine light with P1320 and spark knock on the I30 to the ignition coils, the same condition as a related Maxima bulletin. If new coils do not clear the code, check the wiring. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P1320: Nissan and Infiniti: the engine computer is not seeing the expected ignition primary signal back from the ignition coils

P1574 with a car that stops changing gears

Supported by vehicle data

A 2015 Q50 owner complaint lists P1574 with other speed sensor codes, and says the car hesitated and stopped changing gears in traffic. The scan text reads ASCD vehicle speed sensor. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.

• P1574: Nissan and Infiniti cruise control (ASCD) vehicle speed sensor fault

P1715 read as an input pulley speed signal

Possible — needs testing

An owner complaint on a 2014 Infiniti QX60 says a parts-store scan displayed P1715 as an input pulley speed signal alongside another transmission code. The owner reports surging revs and a vehicle that would not hold a mile. The source is owner reports and it needs testing to confirm.

• P1715: Input (primary) speed sensor signal fault in a Nissan or Infiniti automatic or CVT

P1774 with the check engine light on

Supported by vehicle data

Infiniti bulletin 04047 covers the 2004 QX56 with the check engine light on and P1774 stored. The summary we read is from NHTSA only, not the full bulletin. It does not give a cause or repair in the summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.

• P1774: Low coast brake solenoid valve function fault in a Nissan or Infiniti RE5R05A 5-speed automatic

P1774 on RE5R05A 5-speed automatics

Supported by vehicle data

Infiniti bulletin ITB-10-006A applies to RE5R05A 5-speed automatics and lists P1774 among several transmission codes. It tells the technician to use the repair flow chart when any of them is stored. 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.

• P1774: Low coast brake solenoid valve function fault in a Nissan or Infiniti RE5R05A 5-speed automatic

B00A0: Occupant classification sensor or control unit fault

Severity: Inspect soon Full B00A0 guide

• Q50 2014–2020 · Supported by vehicle data · 1 bulletin

B1129: Right side airbag module circuit fault (Nissan and Infiniti)

Severity: Inspect soon Full B1129 guide

• G35 2003–2005 · Supported by vehicle data · 1 bulletin

B1134: Front left side airbag module circuit open (Nissan and Infiniti)

Severity: Inspect soon Full B1134 guide

• G35 2003–2005 · Supported by vehicle data · 1 bulletin

C1116: Stop lamp switch circuit fault in the ABS system (Nissan)

Severity: Inspect soon Full C1116 guide

• QX60 2016–2022 · Supported by vehicle data · 2 bulletins

C1130: ABS control unit not recognising an engine computer signal (Nissan and Infiniti)

Severity: Inspect soon Full C1130 guide

• QX60 2015 · Supported by vehicle data · 1 bulletin

P0036: A fault in the heater control circuit of the downstream oxygen sensor on bank 1

Severity: Monitor Full P0036 guide

• Q70 2016–2017 · Supported by vehicle data · 1 bulletin
• QX50 2016–2017 · Supported by vehicle data · 1 bulletin
• QX60 2016–2017 · Supported by vehicle data · 1 bulletin
• QX70 2016–2017 · Supported by vehicle data · 1 bulletin

P0100: Mass or volume air flow sensor circuit fault

Severity: Monitor Full P0100 guide

• I30 2000–2002 · Supported by vehicle data · 1 bulletin

P0140: The oxygen sensor behind the catalytic converter on bank 1 is not sending a signal the computer can use

Severity: Monitor Full P0140 guide

• I30 2000–2001 · Supported by vehicle data · 1 bulletin
• QX4 1999–2000 · Supported by vehicle data · 1 bulletin

P0448: EVAP vent valve circuit shorted

Severity: Monitor Full P0448 guide

• Q50 2015–2019 · Supported by vehicle data · 1 bulletin
• QX50 2019 · Supported by vehicle data · 1 bulletin

P0605: The engine computer failed its own read-only memory check

Severity: Inspect soon Full P0605 guide

• G37 2009–2011 · Supported by vehicle data · 1 bulletin

P06DA: Oil pressure control solenoid circuit open or high resistance

Severity: Inspect soon Full P06DA guide

• Q50 2016–2018 · Supported by vehicle data · 1 bulletin

P0710: Transmission fluid temperature sensor A circuit fault

Severity: Inspect soon Full P0710 guide

• G37 2013 · Supported by vehicle data · 1 bulletin

P0720: Transmission output shaft speed sensor circuit fault

Severity: Inspect soon Full P0720 guide

• Q50 2014–2015 · Supported by vehicle data · 1 bulletin

P0793: No signal from the intermediate shaft speed sensor

Severity: Inspect soon Full P0793 guide

• QX50 2019 · Supported by vehicle data · 1 bulletin

P1320: Nissan and Infiniti: the engine computer is not seeing the expected ignition primary signal back from the ignition coils

Severity: Inspect soon Full P1320 guide

• I30 1999–2001 · Supported by vehicle data · 2 bulletins

P1574: Nissan and Infiniti cruise control (ASCD) vehicle speed sensor fault

Severity: Inspect soon Full P1574 guide

• Q50 2015 · Supported by vehicle data

P1774: Low coast brake solenoid valve function fault in a Nissan or Infiniti RE5R05A 5-speed automatic

Severity: Severity not verified Full P1774 guide

• FX35 2005 · Supported by vehicle data · 1 bulletin
• QX56 2004 · Supported by vehicle data · 1 bulletin

P1715: Input (primary) speed sensor signal fault in a Nissan or Infiniti automatic or CVT

Severity: Severity not verified Full P1715 guide

• QX60 2014 · Possible — needs testing