Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the ABS module	Wiring, terminals or connectors ABS module	REFER to MODULE COMMUNICATIONS NETWORK to diagnose the no communication problem.
The yellow ABS warning indicator, the sliding-car icon and the red brake warning indicator are all illuminated at the same time	DTCs present in the ABS module No communication between the ABS module and the Instrument Panel Cluster (IPC)	RETRIEVE and RECORD the ABS module DTCs. GO to the ABS Module DTC Chart .
Both the yellow ABS warning indicator and the red brake warning indicator are illuminated	DTCs present in the ABS module	REFER to the ABS Module DTC Chart .
Both the yellow ABS warning indicator and the sliding-car icon are illuminated	DTCs present in the ABS module	REFER to the ABS Module DTC Chart .
Both the red brake warning indicator and the sliding-car icon are illuminated	DTCs present in the ABS module	REFER to the ABS Module DTC Chart .
The red brake warning indicator is always/never illuminated	Wiring, terminals or connectors Parking brake Brake fluid level sensor IPC ABS module	RETRIEVE and RECORD any ABS module DTCs. REFER to the ABS Module DTC Chart . If no ABS module DTCs are present, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES to diagnose the IPC.
The yellow ABS warning indicator is always/never on	Wiring, terminals or connectors IPC ABS module	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES to diagnose the IPC.
The sliding-car icon is always/never on	Wiring, terminals or connectors IPC ABS module	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES to diagnose the IPC.
The sliding-car icon flashes	AdvanceTrac® system	The sliding-car icon flashes 2 times per second during a traction control or stability event. This is a normal function and does not indicate any concerns.
The sliding-car OFF icon is never/always on	Wiring, terminals or connectors IPC Stability/traction control switch	REFER to Diagnosis and Testing in INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
Unintended ABS activation at low speeds or near the end of stopping the vehicle with no DTCs present	Incorrect or worn tires Underinflated tire(s) Suspension components Missing, damaged or misaligned wheel speed sensor tone rings	INSPECT the wheels and tires, front and rear suspension and the wheel speed sensor tone rings. REPAIR or INSTALL new as necessary.
The stability/traction control system is inoperative	Traction control system is turned off	VERIFY that the system is turned on.
	DTCs present in the ABS module	CARRY OUT the ABS module self-test. RETRIEVE and RECORD any DTCs. REFER to the ABS Module DTC Chart .
	HS-CAN bus	REFER to MODULE COMMUNICATIONS NETWORK to diagnose the no communication problem.
The stability/traction control system cannot be disabled	Wiring, terminals or connectors Traction control switch IPC MyKey™ restricted key is in use with Advance Trac® always-on feature configured to "on"	GO to PINPOINT TEST AA .