P0975 Fault Code

Shift Solenoid B Control Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0975 fault code is triggered when the engine control module (ECM) detects an issue with the Shift Solenoid B Control Circuit. This solenoid is responsible for controlling the transmission's shifting process, ensuring seamless gear transitions. If the solenoid's performance is outside the expected range, it can lead to transmission issues that affect vehicle operation. Common causes for this fault include damaged wiring, faulty solenoid, or issues within the transmission itself.

What are the symptoms of the P0975 code?

Drivers may notice various symptoms associated with this fault code:

• Delayed or harsh shifting sensations
• Transmission slipping or engaging unexpectedly
• Warning lights on the dashboard, such as the check engine light
• Decreased fuel efficiency
• Unusual noises coming from the transmission

What causes the P0975 code?

Several factors can lead to the triggering of the P0975 code:

• Damaged or corroded wiring in the solenoid control circuit
• A malfunctioning Shift Solenoid B
• Poor connection at the solenoid or ECM
• Internal transmission faults or hydraulic issues
• Low transmission fluid levels or contamination

How to fix P0975?

To resolve the P0975 fault code, technicians should:

• Inspect the wiring and connectors for any damage or corrosion and repair as needed
• Test the Shift Solenoid B for functionality and replace it if it is defective
• Ensure that the transmission fluid is at the correct level and in good condition; perform a fluid change if necessary
• Check for any additional codes and address other potential transmission-related problems that could be affecting performance.