P0765 — Shift Solenoid C Performance or Stuck Off
Drivable short-term, but fix now to avoid damage.
What P0765 means
This code means shift solenoid C isn't performing as expected or is stuck in the off position, so it can't properly control the fluid that engages a gear. It's often caused by a stuck or failed solenoid, electrical problems, or low or contaminated transmission fluid. Fixes typically include a fluid service, wiring repair, or replacing the solenoid, and it's frequently solvable without a full transmission rebuild.
Common symptoms
- Check engine light is on
- Transmission won't shift into certain gears
- Slipping or harsh shifting
- Car enters limp mode and feels underpowered
- Higher than normal engine RPMs
Common causes
- Shift solenoid C stuck off or worn out
- Low or contaminated transmission fluid
- Damaged wiring or connector to the solenoid
- Blocked valve body passages
- Faulty transmission control module
Typical repair cost
$150 – $650
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0765 code?
Short trips are usually possible, but it isn't ideal. If the transmission slips or won't shift, you can be left underpowered in traffic, so have it looked at soon.
How much does it cost to fix a P0765 code?
Expect roughly $150 to $650. A fluid service or wiring repair is cheaper, while solenoid replacement costs more depending on the vehicle and labor involved.
Is a P0765 code serious?
Yes, it's worth addressing promptly. A solenoid stuck off can keep the transmission from shifting safely and may cause more damage the longer you wait.
What does 'stuck off' mean for the solenoid?
It means the solenoid isn't opening to allow fluid flow when it should, so the transmission can't engage the gear it controls. That's what sets off the P0765 code.