P0756 Code: Shift Solenoid “B” Performance / Stuck Off

The solenoids found inside your vehicle’s transmission are responsible for changing its gears. They’re able to do this by managing the movement of fluid between various hydraulic circuits. The P0756 code appears in a scan tool when the PCM detects that there’s something wrong with these shift solenoids.

What Does the P0756 Code Mean?

The P0756 code is defined as “Shift Solenoid “B” Performance/Stuck Off.” Shift solenoids are grouped into shift solenoid circuits, which are labeled A, B, and C. The PCM manages them in groups. If it detects that a group has a malfunction, then it will store the specific OBD-II code corresponding to the shift solenoid group. The P0756 code specifically identifies that the “B” shift solenoid circuit has an issue.

If you’re planning to diagnose or troubleshoot P0756 yourself, you can find more useful information in our technical discussion about shift solenoids.

Note: The P0756 code may also have a different definition depending on your vehicle manufacturer. Consult the appropriate repair manual or repair database to be sure of the code’s definition.

What are the Possible Causes of the P0756 Code?

This code triggers when the PCM detects the “B” shift solenoid circuit has a malfunction. But the code can also be triggered or associated with several other transmission-related problems such as the following:

• Low or dirty transmission fluid
• Clogged transmission fluid filter
• Failures in individual transmission shift solenoids
• Transmission control module (TCM) failure
• Damaged connectors or faulty wiring

What are the Common Symptoms of the P0756 Code?

The most common signs of  a P0756 code include:

• Transmission slipping
• Transmission overheating
• Transmission gets stuck in a gear
• Decreased fuel economy
• Engine has misfire-like symptoms
• Vehicle enters limp mode
• Check engine light

How to Diagnose the P0756 Code

Transmission-related issues may be a common indicator of a P0756 code. But accurately identifying which part is faulty can be difficult, because the shift solenoid might not always be the culprit. Transmissions are located under the vehicle, making an inspection difficult. Consult a trusted professional for a proper diagnosis.

How to Fix the P0756 Code

Since there isn’t a single cure-all for any issue, your repair steps will depend on the faulty component. The first step towards correctly repairing the issue is getting an accurate diagnosis.

Once you’ve identified the issue causing the P0756 code, you can then consult online auto repair resources and how-to guides for possible solutions. Since all vehicles are different, you should always consult your vehicle’s repair manual when it comes to troubleshooting and repairing diagnostic codes. Chilton repair manuals may also be useful. However, ALLDATA subscriptions are even better, as they provide detailed factory repair information for drivers who want to do repairs themselves.

Other Notes About the P0756 Code

The code’s definition may immediately signify that the problem is caused by a faulty shift solenoid, but it can also be triggered by dirty transmission fluid, or by the other causes listed above. Don’t immediately replace your solenoid. Test it first to make sure that it’s the faulty part that’s triggering the code. Failure to follow the correct inspection procedure might result in immediate solenoid replacement when it isn’t always necessary. Many vehicle makes like Chevrolet, Ford, and Lexus can be affected by the P0756 code.