Code 37

This DTC flashes the CHECK TRANS indicator and sets the BACKUP MODE.

CIRCUIT DESCRIPTION:
Torque Management is a function that decreases the engine torque during transmission shifts. To do so the Transmission Control Module (TCM) exchanges information on a wire with the Engine Control Module (ECM) that governs the Engine. This wire is the Data Link Connector which is also used by the Scan tool to communicate with the TCM and the ECM.

DIAGNOSTIC AIDS:
- This Diagnostic is not an electrical test done by the TCM but a test between different information ("logic test").
- Detection conditions:
- Torque control failure detected
- Each time a shift occurs with the Torque Management active, the TCM sends a message to the ECM. If the ECM does not acknowledge this message, the DTC is stored.
- Action after the detection time: BACKUP MODE
- Recovery conditions: To recove, do an IGNITION CYCLE.