What does code P288A mean?

Q: What does code P288A mean?

Park Lock/Pawl Actuator Circuit High. P288A indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the park lock/pawl actuator circuit, which is used to engage or release the parking pawl in the transmission. The PCM expects a certain voltage range during actuator operation, and a reading above the threshold suggests an open circuit, short to power, or a faulty actuator.

DTC codes / P28xx · Transmission / P288A

P288APark Lock/Pawl Actuator Circuit High

P288A indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the park lock/pawl actuator circuit, which is used to engage or release the parking pawl in the transmission. The PCM expects a certain voltage range during actuator operation, and a reading above the threshold suggests an open circuit, short to power, or a faulty actuator.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.