What does code P2649 mean?

Q: What does code P2649 mean?

'A' Rocker Arm Actuator Control Circuit High (Bank 1). P2649 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the 'A' rocker arm actuator on bank 1. This actuator is part of a variable valve timing or cylinder deactivation system, and the high voltage suggests a short to power, an open circuit, or a faulty actuator.

DTC codes / P26xx · Computer and output circuits / P2649

P2649'A' Rocker Arm Actuator Control Circuit High (Bank 1)

P2649 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the 'A' rocker arm actuator on bank 1. This actuator is part of a variable valve timing or cylinder deactivation system, and the high voltage suggests a short to power, an open circuit, or a faulty actuator.

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.