What does code P2C9A mean?

Q: What does code P2C9A mean?

Throttle Actuator B Control Exceeded Learning Limit. P2C9A means the engine computer commanded Throttle Actuator B to move to a certain position, but the actuator's feedback signal did not reach that target within the allowed learning window. The computer has exceeded the adaptive learning limit for that actuator, so it cannot reliably trim the throttle plate to the commanded position.

DTC codes / P2Cxx · Hybrid propulsion / P2C9A

P2C9AThrottle Actuator B Control Exceeded Learning Limit

P2C9A means the engine computer commanded Throttle Actuator B to move to a certain position, but the actuator's feedback signal did not reach that target within the allowed learning window. The computer has exceeded the adaptive learning limit for that actuator, so it cannot reliably trim the throttle plate to the commanded position.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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