P0771 Shift solenoid E performance or stuck off

Shift solenoid E stuck off or performance

Severity not verified — if the car runs badly, have it inspected

The two sources give the code definition but no severity rating, so the urgency is not verified. A shift fault can leave the car in a fixed gear, so have it checked soon.

Source: how we rate severity

P0771 in short

P0771 means shift solenoid E is not performing as commanded or is stuck off. TroubleCodes.net lists the wiring or the shift solenoid as the probable cause. A scan tool that reads the transmission module is needed to confirm which part has actually failed.

Shift solenoid E is a valve in the automatic transmission that the computer opens and closes to control gear changes. P0771 is set when it does not behave as commanded or stays off.

TroubleCodes.net lists wiring and the solenoid as the fault location and gives no symptom list for this code.

Most likely causes

These are general causes for this code across vehicles. None is specific to one make or model.

  1. Faulty shift solenoid

    Common general cause
    Why it ranks here
    TroubleCodes.net lists the shift solenoid itself as a probable cause once the wiring tests sound.
    What would change this
    Rises if the solenoid fails a resistance or command test. Falls if it responds correctly.

  2. Wiring, grounds or connector fault in the solenoid circuit

    Common general cause
    Why it ranks here
    TroubleCodes.net lists wiring, poor connections and bad grounds as probable causes of the solenoid circuit codes.
    What would change this
    Rises if a wire is chafed or a connector is corroded. Falls if the circuit tests normal.

  3. Low, dirty or wrong transmission fluid

    Common general cause
    Why it ranks here
    TroubleCodes.net lists low or dirty fluid among the first causes for a shift fault and it is the cheapest thing to check.
    What would change this
    Rises if the level is low or the fluid is dark or burnt. Falls if level and condition are correct.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Read every stored code and freeze-frame data with a scan tool that can read the transmission module.

    Low riskTool: scan tool that reads the transmission module

    • IfOther transmission codes are stored

      It meansWork from the first code stored; one fault can set several.

      Go to step 2

    • IfIt is the only code

      It meansCheck the fluid and wiring next.

      Go to step 2

  2. Have the transmission fluid level and condition checked following the maker's procedure.

    Best left to a shop

    Warning:Many transmissions are checked hot with the engine running, and some are sealed with no dipstick. Let a shop do this.

  3. Have the solenoid E circuit and the solenoid command tested with a scan tool that reads the transmission module.

    Best left to a shop

    Warning:Testing solenoid circuits means working at the transmission connector and sometimes dropping the pan, with hot fluid and a moving drivetrain risk. Let a shop do this.

Symptoms

  • Check engine light
  • Shifting problems

How to fix

  1. Have a shop scan the transmission module for every stored code before any parts are replaced.

  2. Ask a dealer whether a transmission software update or bulletin applies to your VIN.

On your vehicle

Ford

  • 2003–2026 · F-250 Super Duty

    Supported by vehicle data

    Ford bulletin TSB 26-2252 covers poor shift quality or the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module; Ford bulletin TSB 26-2406 covers poor shift quality or the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module; Ford bulletin TSB 26-2375 covers poor shift quality and the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771, superseding TSB 26-2050; Ford bulletin TSB 26-2086 covers poor shift quality with the powertrain malfunction (wrench) indicator and DTCs P2704 and P0771 stored in the transmission control module, possibly due to TCM software; Ford bulletin TSB 26-2050 covers reprogramming the PCM/TCM for poor shift quality and the wrench indicator, superseding TSB 24-2142; Ford bulletin 042516 covers the check engine light with P0756, P0761 or P0771 after overhaul or installation of a 2005 TorqShift transmission. Whether it is still current is not verified.

  • 2003–2026 · F-350 Super Duty

    Supported by vehicle data

    Ford bulletin TSB 26-2252 covers poor shift quality or the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module; Ford bulletin TSB 26-2406 covers poor shift quality or the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module; Ford bulletin TSB 26-2375 covers poor shift quality and the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771, superseding TSB 26-2050; Ford bulletin TSB 26-2086 covers poor shift quality with the powertrain malfunction (wrench) indicator and DTCs P2704 and P0771 stored in the transmission control module, possibly due to TCM software; Ford bulletin TSB 26-2050 covers reprogramming the PCM/TCM for poor shift quality and the wrench indicator, superseding TSB 24-2142; Ford bulletin 042516 covers the check engine light with P0756, P0761 or P0771 after overhaul or installation of a 2005 TorqShift transmission. Whether it is still current is not verified.

  • 2022–2026 · F-450 Super Duty

    Supported by vehicle data

    Ford bulletin TSB 26-2252 covers poor shift quality or the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module; Ford bulletin TSB 26-2406 covers poor shift quality or the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module; Ford bulletin TSB 26-2375 covers poor shift quality and the powertrain malfunction (wrench) indicator with DTCs P2704 and P0771, superseding TSB 26-2050; Ford bulletin TSB 26-2086 covers poor shift quality with the powertrain malfunction (wrench) indicator and DTCs P2704 and P0771 stored in the transmission control module, possibly due to TCM software; Ford bulletin TSB 26-2050 covers reprogramming the PCM/TCM for poor shift quality and the wrench indicator, superseding TSB 24-2142. Whether it is still current is not verified.

  • TSB 26-2375 v2Status unverified

    Poor shift quality with wrench indicator, P2704 and P0771 (updated)

    2022–2024f-550-sd, f-600-sd · issued · NHTSA 11038441

    Updated bulletin (change log noted) on vehicles that may show poor shift quality and an illuminated powertrain malfunction (wrench) indicator with DTCs P2704 and P0771. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 26-2252Status unverified

    Poor shift quality with wrench indicator, P2704 and P0771 stored in PCM

    2025f-250, f-350, f-450-sd, f-550-sd, f-650-sd, f-750-sd · issued · NHTSA 11037296

    Bulletin on vehicles that may show poor shift quality or an illuminated powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 26-2406Status unverified

    Poor shift quality with wrench indicator, P2704 and P0771 stored in PCM (2026 models)

    2026f-250, f-350, f-450-sd, f-550-sd, f-650-sd, f-750-sd · issued · NHTSA 11037298

    Bulletin on vehicles that may show poor shift quality or an illuminated powertrain malfunction (wrench) indicator with DTCs P2704 and P0771 stored in the powertrain control module. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 26-2375Status unverified

    Poor shift quality with wrench indicator, P2704 and P0771; supersedes TSB 26-2050

    2022–2024f-250, f-350, f-450-sd, f-550-sd · issued · NHTSA 11036283

    Bulletin that supersedes TSB 26-2050 to increase the labor operation allowance, on vehicles that may show poor shift quality and an illuminated powertrain malfunction (wrench) indicator with DTCs P2704 and P0771. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 26-2086Status unverified

    Poor shift quality with wrench indicator, P2704 and P0771 in TCM

    2023–2024f-250, f-350, f-450-sd, f-550-sd, f-600-sd · issued · NHTSA 11029924

    Bulletin on vehicles that may show poor shift quality with the powertrain malfunction (wrench) indicator and DTCs P2704 and P0771 stored in the transmission control module, possibly due to TCM software. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 26-2050Status unverified

    PCM/TCM reprogramming for poor shift quality; supersedes TSB 24-2142

    2022–2024f-250, f-350, f-450-sd, f-550-sd, f-600-sd · issued · NHTSA 11028838

    Bulletin that supersedes TSB 24-2142 to update the parts list and service procedure and raise the labor allowances for reprogramming the PCM/TCM, on vehicles with poor shift quality and the wrench indicator. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 24-2142Status unverified

    10R140 transmission wrench indicator with P2704 and P0771; supersedes TSB 23-2376

    2022–2024f-250, f-350, f-450-sd, f-550-sd, f-600-sd, f-650-incomplete-chassis, f-650-sd, f-750-sd · issued · NHTSA 11001575

    Bulletin that supersedes TSB 23-2376 to update the parts list and service procedure, on 2022 to 2024 F-550 and F-600 Super Duty vehicles with the 10R140 automatic transmission and 6.7L diesel that show the wrench indicator with DTCs. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • TSB 23-2376Status unverified

    2022 F-550/F-600 10R140 and 6.7L diesel, wrench indicator with P2704 and P0771

    2022f-550-sd, f-600-sd · issued · NHTSA 10248351

    Bulletin on some 2022 F-550 and F-600 Super Duty vehicles with the 10R140 automatic transmission and 6.7L diesel that may show the wrench indicator with DTCs P2704 and P0771 stored in the TCM with poor shifting. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 042516Status unverified

    MIL with P0756, P0761 or P0771 after TorqShift overhaul or installation

    2003–2004e-250, e-350, e-450, e-550, excursion, f-250, f-350, f-450-sd, f-550-sd · issued · NHTSA 10014269

    Bulletin on the check engine light with P0756, P0761 or P0771 after overhaul or installation of a 2005 TorqShift transmission. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 0752Status unverified

    P0771, P0774 and/or 4th-gear start, harsh 4-1 downshift, 6F50

    2007edge · NHTSA 10021461

    Bulletin on P0771, P0774 and/or starting in 4th gear from a stop and a harsh 4-1 downshift at drive-away, on 6F50 transaxles built before 01-10-07. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Subaru

  • 2010–2013 · Legacy

    Supported by vehicle data

    Subaru bulletin 16-80-11R covers a flashing oil temperature warning lamp with P0771 among several transmission codes and possible intermittent stalling, which may result from valve body contamination. Whether it is still current is not verified.

  • 2010–2013 · Outback

    Supported by vehicle data

    Subaru bulletin 16-80-11R covers a flashing oil temperature warning lamp with P0771 among several transmission codes and possible intermittent stalling, which may result from valve body contamination. Whether it is still current is not verified.

  • 2010–2013 · B9 Tribeca

    Supported by vehicle data

    Subaru bulletin 16-80-11R covers a flashing oil temperature warning lamp with P0771 among several transmission codes and possible intermittent stalling, which may result from valve body contamination. Whether it is still current is not verified.

  • 16-80-11RStatus unverified

    Oil temperature lamp flashing with P0771 and other codes, valve body contamination

    2010–2013b9-tribeca, legacy, outback · issued · NHTSA 10067834

    Bulletin on an oil temperature warning lamp flashing with P0751, P0756, P0761, P0766, P0771, P1840 to P1844 stored and possible intermittent stalling, which may result from valve body contamination. Only the NHTSA summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

All Transmission codes

P0771 questions

Is P0771 the same as P0773?

No. P0771 is a performance or stuck-off fault, while P0773 is an electrical fault in the same solenoid.

Sources and review

  1. P0768, P0769, P0771, P0773 and P0781 code pages — TroubleCodes.net
  2. On-Board Diagnostic Trouble Codes (generic code title list) — Delaware Division of Motor Vehicles
  3. TSB 26-2252: Poor shift quality with wrench indicator, P2704 and P0771 stored in PCM — Ford
  4. TSB 26-2406: Poor shift quality with wrench indicator, P2704 and P0771 stored in PCM (2026 models) — Ford
  5. TSB 26-2375: Poor shift quality with wrench indicator, P2704 and P0771; supersedes TSB 26-2050 — Ford
  6. TSB 26-2086: Poor shift quality with wrench indicator, P2704 and P0771 in TCM — Ford
  7. TSB 26-2050: PCM/TCM reprogramming for poor shift quality; supersedes TSB 24-2142 — Ford
  8. 042516: MIL with P0756, P0761 or P0771 after TorqShift overhaul or installation — Ford
  9. 16-80-11R: Oil temperature lamp flashing with P0771 and other codes, valve body contamination — Subaru
Last reviewed
Written by
Saurabh K.
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