What does code P0A18 mean?

Q: What does code P0A18 mean?

Motor Torque Sensor Circuit Range/Performance. P0A18 indicates that the hybrid or electric vehicle controller has detected an abnormal signal from the motor torque sensor circuit, where the reported torque value falls outside the expected range or does not correlate with other operating parameters. The computer compares the sensor's output against calculated torque from current and speed inputs, and when the discrepancy exceeds a calibrated threshold, it logs this code and may limit power.

DTC codes / P0Axx · Hybrid propulsion / P0A18

P0A18Motor Torque Sensor Circuit Range/Performance

P0A18 indicates that the hybrid or electric vehicle controller has detected an abnormal signal from the motor torque sensor circuit, where the reported torque value falls outside the expected range or does not correlate with other operating parameters. The computer compares the sensor's output against calculated torque from current and speed inputs, and when the discrepancy exceeds a calibrated threshold, it logs this code and may limit power.

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.