What does code P2653 mean?

Q: What does code P2653 mean?

'B' Rocker Arm Actuator Control Circuit Low (Bank 1). P2653 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the 'B' rocker arm actuator on bank 1. This actuator is part of a variable valve timing or cylinder deactivation system that adjusts valve lift or disables rockers, and the low circuit voltage means the PCM cannot reliably command the actuator, potentially affecting engine performance and emissions.

DTC codes / P26xx · Computer and output circuits / P2653

P2653'B' Rocker Arm Actuator Control Circuit Low (Bank 1)

P2653 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the 'B' rocker arm actuator on bank 1. This actuator is part of a variable valve timing or cylinder deactivation system that adjusts valve lift or disables rockers, and the low circuit voltage means the PCM cannot reliably command the actuator, potentially affecting engine performance and emissions.

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.