What are the common causes of P0776?

Failed pressure control solenoid B. Contaminated valve body clogging the solenoid. Damaged solenoid wiring. Worn clutch pack from low line pressure. Faulty TCM.

Check transmission fluid level and condition. Watch line pressure and solenoid current commands on a scan tool. Inspect the transmission harness connector. Test solenoid resistance and supply current. Replace the solenoid or valve body and re-test pressure.

P0776

Pressure Control Solenoid B Performance/Stuck Off

System: Transmission (P code)
Lamp: Check Engine Light
Category: Powertrain - Transmission

What it means

P0776 means Pressure Control Solenoid B Performance/Stuck Off.

Where it lives

For P0776, the description names the solenoid as the part involved.

Check these first

Failed pressure control solenoid B
Contaminated valve body clogging the solenoid
Damaged solenoid wiring
Worn clutch pack from low line pressure
Faulty TCM

What to do next

Check transmission fluid level and condition
Watch line pressure and solenoid current commands on a scan tool
Inspect the transmission harness connector
Test solenoid resistance and supply current
Replace the solenoid or valve body and re-test pressure

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.