What does code P2647 mean?

Q: What does code P2647 mean?

'A' Rocker Arm Actuator System Stuck On (Bank 1). P2647 means the powertrain control module (PCM) commanded the bank 1 'A' rocker arm actuator to change state, but the circuit feedback indicates the actuator is stuck in the on position. The computer detects this by comparing the commanded state to the actual current or voltage signature on the actuator control circuit, and it sets the code when the two do not agree.

DTC codes / P26xx · Computer and output circuits / P2647

P2647'A' Rocker Arm Actuator System Stuck On (Bank 1)

P2647 means the powertrain control module (PCM) commanded the bank 1 'A' rocker arm actuator to change state, but the circuit feedback indicates the actuator is stuck in the on position. The computer detects this by comparing the commanded state to the actual current or voltage signature on the actuator control circuit, and it sets the code when the two do not agree.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

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