Traction Off Indicator Always On
Traction Off Indicator Always On
Circuit Description
The Traction Off indicator is controlled by the instrument panel cluster (IPC) via serial data messages from the electronic brake control module (EBCM). When the rear integration module (RIM) sees the traction control switch input grounded through the momentary traction control switch, it sends a serial data message to the EBCM that tells the EBCM that the traction control switch has been pressed. The EBCM then disables traction control and sends a serial data message to the IPC to turn on the Traction Off indicator on the instrument panel. Each time the ignition is cycled from OFF to ON, the traction control system is enabled.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Use the scan tool to check the normal state of the traction indicator control.
3. Ensures that the instrument cluster can operate the traction indicator.
