Engine-Codes.com
Engine-Codes – Toyota – P0755 Toyota

P0755 Toyota Code - Shift Solenoid 'B' Malfunction

Quick Answer

The P0755 diagnostic trouble code (DTC) for Toyota vehicles indicates a malfunction in the shift solenoid 'B' circuit. Common causes include Faulty shift solenoid 'B', Wiring or electrical issues in the shift solenoid circuit, Low transmission fluid level or contaminated 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
P0755 Toyota indicates Shift Solenoid 'B' Malfunction.
Common causes
Common causes include Faulty shift solenoid 'B', Wiring or electrical issues in the shift solenoid circuit, Low transmission fluid level or contaminated 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 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0755 Toyota Description

The P0755 diagnostic trouble code (DTC) for Toyota vehicles indicates a malfunction in the shift solenoid 'B' circuit. The shift solenoid 'B' is responsible for controlling the transmission's hydraulic pressure to engage and disengage the gears. When this solenoid malfunctions, it can lead to issues with shifting gears, which can result in poor vehicle performance, decreased fuel efficiency, and potential damage to the transmission system if left unaddressed.

OBDII Code P0755 Toyota - Shift Solenoid 'B' Malfunction
P0755 Toyota Code - Shift Solenoid 'B' Malfunction

Common Causes of P0755 Toyota

  1. Faulty shift solenoid 'B'
  2. Wiring or electrical issues in the shift solenoid circuit
  3. Low transmission fluid level or contaminated fluid
  4. Mechanical problems in the transmission system
  5. Computer or software issues related to the transmission control module

Symptoms of P0755 Toyota

  1. Harsh or delayed shifting
  2. Slipping gears
  3. Transmission getting stuck in a specific gear
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0755 Toyota

  1. Diagnostic scan: Use a diagnostic scanner to retrieve the error code and pinpoint the exact cause of the issue.
  2. Inspect wiring and connections: Check the wiring and connections in the shift solenoid circuit for any damage, corrosion, or loose connections.
  3. Test the shift solenoid 'B': Test the shift solenoid 'B' for proper operation and replace it if it is found to be faulty.
  4. Check transmission fluid: Inspect the transmission fluid level and quality, and top up or replace it if necessary.
  5. Clear error codes: Once the repair is complete, clear the error codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0755 Toyota

The typical repair costs for a shift solenoid 'B' malfunction in a Toyota vehicle can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary depending on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less for labor.

What does this mean?

Tech Notes for P0755 Toyota

When the a transmission solenoid is malfunction, 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 recommend changing the transmission fluid and if possible removing 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.

When is the Code Detected?

The P0755 code is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.

Need more information about the P0755 Toyota code?

Need more information on how to fix the P0755 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0755 Toyota code diagnosed by a professional: Find a repair shop in your area

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 P0755 Toyota Code

1. What are the common symptoms of OBDII code P0755 in a Toyota related to Shift Solenoid 'B' Malfunction?

- Common symptoms include erratic shifting, harsh shifting, transmission slippage, and difficulty engaging gears.

2. What are the possible causes of the Shift Solenoid 'B' Malfunction (P0755) in a Toyota?

- Possible causes include a faulty shift solenoid 'B', low transmission fluid, a clogged transmission filter, electrical issues, or a malfunctioning transmission control module.

3. How can I diagnose OBDII code P0755 related to Shift Solenoid 'B' Malfunction in my Toyota?

- Diagnose by conducting a thorough inspection of the transmission system, checking the transmission fluid level and condition, performing a scan tool test, and inspecting the wiring and connectors.

4. Can I continue driving my Toyota with OBDII code P0755 Shift Solenoid 'B' Malfunction?

- It is not recommended to drive the vehicle with this code as it can lead to further transmission damage and potential safety hazards. Seek repairs promptly.

5. How can I repair OBDII code P0755 Shift Solenoid 'B' Malfunction in my Toyota?

- Repair options include replacing the faulty shift solenoid 'B', addressing any transmission fluid issues, checking and repairing electrical connections, or resetting the transmission control module.

6. Is it possible to reset the OBDII code P0755 related to Shift Solenoid 'B' Malfunction in a Toyota without repairs?

- While clearing the code may temporarily turn off the check engine light, it is crucial to address the underlying issue causing the code to prevent further transmission problems.

7. Can a DIY enthusiast fix OBDII code P0755 Shift Solenoid 'B' Malfunction in a Toyota?

- Depending on the skill level and access to tools, some DIY enthusiasts may be able to replace the shift solenoid 'B' or check transmission fluid levels. However, complex diagnostics may require professional help.

8. How much does it typically cost to repair OBDII code P0755 Shift Solenoid 'B' Malfunction in a Toyota?

- The cost of repairs can vary depending on the specific issue causing the code, the labor rates in your area, and whether you choose OEM or aftermarket parts. Expect costs for parts and labor.

9. Are there any preventive maintenance tips to avoid OBDII code P0755 related to Shift Solenoid 'B' Malfunction in a Toyota?

- Regularly servicing the transmission, checking and replacing transmission fluid as recommended, and addressing any shifting issues promptly can help prevent this code from occurring.

10. How long does it take to repair OBDII code P0755 Shift Solenoid 'B' Malfunction in a Toyota?

- The repair time can vary depending on the exact cause of the issue, the availability of parts, and the technician's workload. It can range from a few hours to a full day in some cases.

Discuss the causes and fixes for P0755 Toyota OBDII Code

Submit a New Comment

  • Hi can someone plz help me. Fin the location of a 2007 toyota yaris shift solenoid b location? ????

    Reply to Comment

  • I can't find the P0755 code for the 2007 Toyota Yaris, but here is the only image the factory provides to locate the solenoid. All the transmission solenoids are inside the transmission attached to the valve body.

    Reply to Comment

  • Can a malfunctioning shift Solenoid Sensor "A" contribute to the malfunction of shift solenoid sensor "B" ?

    Reply to Comment

  • It's possible, but more than likely the same issue that damage the Solenoid 'A', also damage Solenoid 'B'. For example, dirty transmission fluid, lack of maintenance, overuse, the age of the vehicle; all those things can cause a premature failure of the solenoids.

    Reply to Comment