What does code P2C99 mean?

Q: What does code P2C99 mean?

Throttle Actuator A Control Exceeded Learning Limit. P2C99 means the engine computer commanded the throttle actuator on bank A to move to a target position, but the actuator's learned position correction exceeded the maximum limit the computer will accept. The electronic throttle body is not reaching or holding the commanded position within the range the control module considers normal, so it has flagged the actuator's adaptive learning as out of bounds.

DTC codes / P2Cxx · Hybrid propulsion / P2C99

P2C99Throttle Actuator A Control Exceeded Learning Limit

P2C99 means the engine computer commanded the throttle actuator on bank A to move to a target position, but the actuator's learned position correction exceeded the maximum limit the computer will accept. The electronic throttle body is not reaching or holding the commanded position within the range the control module considers normal, so it has flagged the actuator's adaptive learning as out of bounds.

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.