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Engine-Codes – Toyota – P0771 Toyota

P0771 Toyota Code - Shift Solenoid 'E' Performance

Quick Answer

The P0771 diagnostic trouble code (DTC) for Toyota vehicles specifically refers to an issue with the Shift Solenoid 'E' performance. Common causes include Faulty Shift Solenoid 'E', Wiring issues, Malfunctioning ECM. 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 Toyota indicates Shift Solenoid 'E' Performance.
Common causes
Common causes include Faulty Shift Solenoid 'E', Wiring issues, Malfunctioning ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0771 Toyota Description

The P0771 diagnostic trouble code (DTC) for Toyota vehicles specifically refers to an issue with the Shift Solenoid 'E' performance. This code is triggered when the Engine Control Module (ECM) detects a problem with the performance of the Shift Solenoid 'E' in the transmission system. The Shift Solenoid 'E' is responsible for controlling the flow of transmission fluid to engage or disengage specific gears within the transmission. When this solenoid fails to operate correctly, it can lead to various transmission-related issues, affecting the vehicle's overall performance and drivability.

OBDII Code P0771 Toyota - Shift Solenoid 'E' Performance
P0771 Toyota Code - Shift Solenoid 'E' Performance

Common Causes of P0771 Toyota

  1. Faulty Shift Solenoid 'E'
  2. Wiring issues
  3. Malfunctioning ECM
  4. Low transmission fluid levels
  5. Contaminated transmission fluid

Symptoms of P0771 Toyota

  1. Harsh or delayed shifting
  2. Erratic shifting patterns
  3. Transmission slipping
  4. Poor fuel economy
  5. Transmission overheating

How to Fix P0771 Toyota

  1. Perform a diagnostic scan to confirm the P0771 code and identify the specific issue with the Shift Solenoid 'E'.
  2. Inspect the wiring harness and connectors for any signs of damage or corrosion.
  3. Test the Shift Solenoid 'E' to determine if it is functioning correctly. Replace the solenoid if necessary.
  4. Check the transmission fluid level and condition. Top up or replace the fluid as needed.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0771 Toyota

The cost of repairing a Shift Solenoid 'E' performance issue can vary depending on the extent of the problem and the specific repairs needed. On average, the parts for a solenoid replacement can range from $100 to $300, while labor costs can range from $150 to $300, bringing the total repair cost to around $250 to $600. However, it is important to note that labor rates and prices for parts can vary significantly based on location, vehicle make and model, and the repair shop chosen. It is advisable to obtain a detailed quote from a trusted auto repair shop to get a more accurate estimate for this repair.

When is the Code Detected?

The P0771 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck off

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Information for Specific Toyota Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0771 Toyota Code

1. What does the OBDII code P0771 mean on a Toyota?

P0771 indicates a performance issue with Shift Solenoid 'E,' which controls fluid flow in the transmission to manage gear shifts.

2. What are the symptoms of code P0771 in a Toyota?

Symptoms include harsh or delayed shifting, transmission slipping, poor fuel economy, and the check engine light being illuminated.

3. What causes the P0771 code to trigger in a Toyota?

Common causes include a faulty shift solenoid 'E,' dirty or low transmission fluid, wiring issues, or internal transmission problems.

4. Can I drive my Toyota with the P0771 code?

Driving with this code is not recommended, as it can lead to further damage to the transmission or unsafe driving conditions.

5. How do I diagnose the P0771 code on my Toyota?

Diagnosis typically involves using an OBDII scanner, inspecting the transmission fluid, checking the solenoid wiring and connectors, and testing the solenoid’s operation.

6. How do I fix the P0771 code on a Toyota?

Repairs may include replacing the faulty shift solenoid, flushing or refilling the transmission fluid, repairing damaged wiring, or rebuilding the transmission if severe damage exists.

7. How much does it cost to repair the P0771 code on a Toyota?

The cost varies but typically ranges from $200 to $500 for solenoid replacement. More extensive transmission repairs may exceed $1,000.

8. Can low transmission fluid cause the P0771 code on a Toyota?

Yes, low or dirty transmission fluid can impair solenoid performance and trigger the P0771 code.

9. How can I prevent the P0771 code from occurring in my Toyota?

Regularly check and change transmission fluid, inspect wiring and connectors, and follow the manufacturer’s maintenance schedule.

10. Will clearing the P0771 code fix the problem on my Toyota?

Clearing the code may turn off the check engine light temporarily, but the underlying issue must be fixed to prevent the code from returning.

Discuss the causes and fixes for P0771 Toyota OBDII Code

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  • i replaced catalyst converter, i replaced up stream oxygen sensor, i resently change chacoal canister solenoid switch plus evap valve,changed gas tank cap from tony gram, another code p0771 is on,

    Reply to Comment

  • The P0771 code has nothing to do with previous repair, probably it's coincidence. Do you have other symptoms? if you don't, then you could start by clearing the code.

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