What does code P0A1B mean?

Q: What does code P0A1B mean?

Drive Motor A Control Module Performance. P0A1B indicates that the vehicle's computer has detected a performance fault within the control module for Drive Motor A, which is the primary electric propulsion motor in a hybrid or electric vehicle. The computer monitors the motor control module's internal calculations, sensor inputs, and commanded outputs, and it sets this code when the module's reported behavior does not match expected values or when the module itself reports an internal error.

DTC codes / P0Axx · Hybrid propulsion / P0A1B

P0A1BDrive Motor A Control Module Performance

P0A1B indicates that the vehicle's computer has detected a performance fault within the control module for Drive Motor A, which is the primary electric propulsion motor in a hybrid or electric vehicle. The computer monitors the motor control module's internal calculations, sensor inputs, and commanded outputs, and it sets this code when the module's reported behavior does not match expected values or when the module itself reports an internal error.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

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.