The P0965 trouble code is stored by the PCM (powertrain control module) when it observes a voltage level from clutch pressure control solenoid B which is invalid or outside the normal range.
What the P0965 code stands for
If the pressure control solenoid B for the car’s clutch is giving the wrong voltage readings, there could be a problem with the solenoid, the sensor, the wiring, or with the clutch itself. Shifting may get harsh, and other transmission issues may arise.
What are the causes of the P0965 code?
The most common causes of a P0965 code being stored include:
- A shorted or poorly connected harness or connector to the primary pressure solenoid
- An issue with the primary pressure solenoid valve
What are the signs of the P0965 code?
In all situations when the P0965 code is stored, the Check Engine light will be illuminated. The transmission control modules will equally generally the adaptive transmission duties, which could cause noticeable variations to the vehicle’s performance, particularly where shifting is concerned.
How can a mechanic diagnose the P0965 code?
The mechanic will first make use of an OBD-II scanner to identify the code and any other OBD-II codes that may equally have been stored. After diagnosing and resolving any related codes, they will then retest the system by taking a test drive so that they can run the car at over 25 miles per hour for a minimum of 20 seconds. If the code has not been resolved, this should store the code again.
If the P0965 code is once again stored, the mechanic will carry out a visual inspection of the pressure control solenoid and related systems. If any circuits or connections are damaged or lose, they will resolve these problems and move on to retest the system.
What kind of repairs can fix the P0965 code?
Depending on the particular cause of the P0965 code, repairs may vary. Some repairs that can resolve the problem include:
- Repairing or changing the harness or connector for the primary pressure solenoid.
- Addressing any faulty wiring, loose connections, or damaged circuits.
- Changing the primary pressure solenoid.
In some rare situations, the problem could be with the PCM but other codes will almost invariably be present, as well, and should be repaired first.