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DTC codes / P0Axx · Hybrid propulsion / P0A22

P0A22Generator Torque Sensor Circuit

P0A22 indicates that the powertrain control module (PCM) or hybrid control module has detected an implausible signal from the generator torque sensor circuit. This sensor reports the mechanical torque the generator is producing or absorbing, and the module uses that data to manage hybrid power flow and protect the generator from overload.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
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.

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