Normal Operation
The traction control switch (part of the hazard flasher lamp switch) can be used by the driver to disable and enable the traction control systems. When the ignition is turned to the RUN position the stability/traction control OFF indicator (sliding car OFF icon) in the Instrument Panel Cluster (IPC) illuminates momentarily as a test. Momentarily pressing the switch disables the traction control system. When the traction control system is disabled through the use of the switch, the sliding car OFF icon illuminates continuously. The conventional ABS system cannot be disabled through the use of the stability/traction control switch. If a MyKey® restricted key is in use with the AdvanceTrac® always-on feature configured to on, the traction control system cannot be disabled. Only an admin key can be used to change a MyKey® traction control system setting from always-on to user select.
- DTC C0089:73 (TCS Disable Switch: Actuator Stuck Closed) - sets in continuous memory and on-demand if the stability/traction control switch is pressed for more than 30 seconds or the switch actuator is stuck.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Stability/traction control switch
- ABS module