P0771 Code - Shift Solenoid 'E' Performance or Stuck Off
Quick Answer
Shift solenoid valve 'E' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'E' valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0771 indicates Shift Solenoid 'E' Performance or Stuck Off.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'E' valve.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0771 Description
What are the Possible Causes of the DTC P0771?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 'E' valve
- Shift solenoid 'E' valve harness is open or shorted
- Shift solenoid 'E' valve circuit poor electrical connection
How to Fix the DTC P0771?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0771 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Get the P0771 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P0771 Acura — Shift Solenoid Valve 'E' Stuck Off
- P0771 Audi — Shift Solenoid 'E' Performance or Stuck Off
- P0771 Honda — Shift Solenoid Valve 'E' Stuck Off
- P0771 Lexus — Shift Solenoid 'E' Performance
- P0771 Mazda — Shift Solenoid 'E' Stuck Off
- P0771 Mercedes-Benz — Shift Solenoid 'E' Performance or Stuck Off
- P0771 Subaru — Shift Solenoid 'E' Performance or Stuck Off
- P0771 Suzuki — Shift Solenoid 'E' Performance or Stuck Off
- P0771 Toyota — Shift Solenoid 'E' Performance
- P0771 Volkswagen — Shift Solenoid 'E' Performance or Stuck Off
Frequently Asked Questions about P0771 Code
What does the OBDII code P0771 mean?
P0771 indicates that the transmission control module (TCM) has detected an issue with the performance or functionality of shift solenoid 'E', which is responsible for regulating transmission fluid to control gear shifting.
What are the common symptoms of a P0771 code?
Symptoms may include delayed or harsh shifting, inability to shift gears, slipping transmission, reduced fuel efficiency, and illumination of the check engine light.
What causes the P0771 code to appear?
Common causes include a faulty shift solenoid 'E', low or dirty transmission fluid, damaged wiring or connectors, or internal transmission problems such as worn valves or clutches.
Can I still drive my vehicle with a P0771 code?
Driving with a P0771 code is not recommended, as it can lead to further transmission damage or unsafe driving conditions due to improper gear shifting.
How is the P0771 code diagnosed?
A mechanic will use a scan tool to confirm the code, inspect transmission fluid condition, check wiring and connectors for damage, and test the shift solenoid for proper operation.
How can I fix the P0771 code?
Repairs may include replacing the shift solenoid 'E', flushing and replacing transmission fluid, repairing damaged wiring or connectors, or addressing internal transmission issues.
Can low transmission fluid cause a P0771 code?
Yes, low or contaminated transmission fluid can affect solenoid performance and trigger the P0771 code.
How much does it cost to fix a P0771 code?
Repair costs vary but may range from $100 to $400 for solenoid replacement or fluid service, and higher for internal transmission repairs.
What tools do I need to fix a P0771 code?
Basic tools include a scan tool or OBDII reader, a multimeter for electrical testing, and tools for accessing and replacing the solenoid if needed.
How can I prevent a P0771 code in the future?
Regularly maintain your transmission by checking and replacing fluid as needed, addressing leaks promptly, and ensuring electrical connections are clean and secure.
Discuss the causes and fixes for P0771 OBDII Code
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Hi I have 2014 isuzu dmax I have that code I change value body transmission computer change filter transmission fluid and still code won't go still there any recommendations?
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