What does code P1813 mean?

Q: What does code P1813 mean?

Torque Control. P1813 on GM vehicles indicates a fault in the torque control system, where the transmission control module (TCM) has detected an unexpected condition in the circuit or performance of the torque management strategy. The TCM monitors signals from the engine control module (ECM) and transmission sensors to regulate engine torque during shifts, and this code sets when the actual torque delivery does not match the commanded value or when a circuit fault is present.

DTC codes / GM codes / P1813

P1813 · GMTorque Control

P1813 on GM vehicles indicates a fault in the torque control system, where the transmission control module (TCM) has detected an unexpected condition in the circuit or performance of the torque management strategy. The TCM monitors signals from the engine control module (ECM) and transmission sensors to regulate engine torque during shifts, and this code sets when the actual torque delivery does not match the commanded value or when a circuit fault is present.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyProfessional

AreaTransmission

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