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Engine-Codes – Generic – P0757

P0757 Code - Shift Solenoid 'B' Performance or Stuck On

Quick Answer

The P0757 diagnostic trouble code indicates that the transmission shift solenoid 'B' is experiencing performance issues or is stuck in the on position. Common causes include Faulty shift solenoid 'B', Wiring or electrical issues, Low or contaminated transmission fluid. 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
P0757 indicates Shift Solenoid 'B' Performance or Stuck On.
Common causes
Common causes include Faulty shift solenoid 'B', Wiring or electrical issues, Low or contaminated transmission fluid.
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 07, 2024
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Code P0757 Description

The P0757 diagnostic trouble code indicates that the transmission shift solenoid 'B' is experiencing performance issues or is stuck in the on position. In an automatic transmission system, shift solenoids are responsible for regulating the flow of transmission fluid to control gear shifts. When solenoid 'B' malfunctions, it can lead to erratic shifting patterns, transmission slippage, and potential damage to the transmission system.

OBDII Code P0757 - Shift Solenoid 'B' Performance or Stuck On
P0757 Code - Shift Solenoid 'B' Performance or Stuck On

Common Causes of P0757

  1. Faulty shift solenoid 'B'
  2. Wiring or electrical issues
  3. Low or contaminated transmission fluid
  4. Malfunctioning transmission control module
  5. Mechanical damage to the transmission components

Symptoms of P0757

  1. Erratic shifting patterns
  2. Delayed or harsh gear shifts
  3. Transmission slipping
  4. Transmission overheating
  5. Illumination of the check engine light

How to Fix P0757

  1. Perform a comprehensive diagnostic scan to confirm the P0757 code and identify the specific issue.
  2. Inspect the shift solenoid 'B' and related wiring for any visible damage or corrosion.
  3. Check the transmission fluid level and condition, replacing or flushing as needed.
  4. Test the transmission control module for proper operation and potential faults.
  5. Replace the faulty shift solenoid 'B' or address any other identified issues, then clear the code and test drive the vehicle to ensure proper functionality.

Cost to Fix P0757

The typical repair costs for addressing a P0757 code can vary depending on the specific cause of the issue and the vehicle's make and model. On average, parts for a shift solenoid replacement can range from $100 to $300, while labor costs can add another $100 to $200. Overall, the total repair cost can range from $200 to $500 or more. It's important to consider that diagnostic time and labor rates can vary, so it's advisable to consult with a trusted auto repair shop for a more accurate estimate based on your specific circumstances.

What does this mean?

Tech Notes for P0757

When the transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommended to change the transmission fluid and if possible, remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure, and that the transmission will need to be rebuilt or replaced.





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When is the Code Detected?

The P0757 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck on

Need more information about the P0757 code?

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Need Help with the Code?

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Code P0757 Information for Specific Makes

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 P0757 Code

1. What are the common symptoms of OBDII code P0757 (Shift Solenoid 'B' Performance or Stuck On)?

- Common symptoms include harsh shifting, delayed or erratic shifting, transmission slippage, and the vehicle getting stuck in a single gear.

2. What are the possible causes of OBDII code P0757?

- The code P0757 can be caused by a faulty shift solenoid 'B', low transmission fluid level, dirty transmission fluid, wiring issues, or a malfunctioning transmission control module.

3. How serious is OBDII code P0757?

- OBDII code P0757 should be addressed promptly as it can lead to transmission damage if left unresolved. It is recommended to have the issue diagnosed and repaired as soon as possible.

4. How can I diagnose OBDII code P0757 at home?

- Diagnosing OBDII code P0757 usually requires a professional OBDII scanner to read the code and identify the specific issue with the shift solenoid 'B'. Checking the transmission fluid level and condition can also provide helpful information.

5. Can I continue driving with OBDII code P0757?

- It is not recommended to continue driving with OBDII code P0757, as it can cause further damage to the transmission and lead to costly repairs. It is best to address the issue promptly.

6. How can I repair OBDII code P0757?

- Repairing OBDII code P0757 typically involves replacing the faulty shift solenoid 'B', ensuring the transmission fluid is at the correct level and is clean, checking and repairing any damaged wiring, and resetting the trouble code.

7. How much does it cost to fix OBDII code P0757?

- The cost of fixing OBDII code P0757 can vary depending on the root cause of the issue, the labor rates in your area, and whether you choose to do the repairs yourself or take your vehicle to a professional mechanic. Costs can range from a few hundred to over a thousand dollars.

8. Can I prevent OBDII code P0757 from occurring?

- Regular maintenance of your vehicle's transmission, including changing the transmission fluid at recommended intervals, can help prevent issues such as OBDII code P0757. Addressing any transmission problems promptly can also prevent further damage.

9. How long does it take to repair OBDII code P0757?

- The time it takes to repair OBDII code P0757 can vary depending on the specific issue causing the code, the availability of parts, and the expertise of the technician. In general, the repair can take a few hours to a full day.

10. Will OBDII code P0757 cause my vehicle to fail an emissions test?

- OBDII code P0757 may cause your vehicle to fail an emissions test, as it indicates a problem with the transmission system. It is recommended to address the issue and have the code cleared before undergoing an emissions test.

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