What does code P2818 mean?

Q: What does code P2818 mean?

Pressure Control Solenoid H Stuck On. P2818 indicates that the transmission control module (TCM) has detected an abnormal electrical condition in the pressure control solenoid H circuit, specifically that the solenoid is stuck in the energized (on) state. The TCM commands the solenoid to regulate hydraulic pressure, but the circuit feedback indicates it remains continuously engaged, which can cause harsh shifts or pressure control issues.

DTC codes / P28xx · Transmission / P2818

P2818Pressure Control Solenoid H Stuck On

P2818 indicates that the transmission control module (TCM) has detected an abnormal electrical condition in the pressure control solenoid H circuit, specifically that the solenoid is stuck in the energized (on) state. The TCM commands the solenoid to regulate hydraulic pressure, but the circuit feedback indicates it remains continuously engaged, which can cause harsh shifts or pressure control issues.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.