Symptom Chart: Vehicle Dynamic Systems

SYMPTOM CHART

Condition	Possible Sources	Actions
No communication with the ABS module	Fuse Wiring, terminals or connectors ABS module concern	REFER to DIAGNOSTIC ROUTINE B : The Anti-Lock Brake System (ABS) Module Does Not Respond To The Scan Tool.
The red brake warning indicator is always/never on	Low brake fluid level Brake fluid level sensor Parking brake applied Parking brake switch Brake booster vacuum sensor IPC concern ABS concern	RETRIEVE all ABS DTCs and REFER to DTC Chart: Anti-Lock Brake System (ABS) Module . If no DTCs are present and the indicator is never on, REFER to DIAGNOSTIC ROUTINE K : The Brake Warning Indicator is Never On. If no DTCs are present and the indicator is always on, REFER to DIAGNOSTIC ROUTINE L : The Brake Warning Indicator is Always On.
The yellow ABS warning indicator is always/never on	IPC concern ABS concern	RETRIEVE all ABS DTCs and REFER to DTC Chart: Anti-Lock Brake System (ABS) Module . If no DTCs are present, REFER to DIAGNOSTIC ROUTINE M : The ABS Warning Indicator Is Never or Always On.
The stability/traction control indicator "sliding-car icon" is always/never on	IPC concern ABS concern	RETRIEVE all ABS DTCs and REFER to DTC Chart: Anti-Lock Brake System (ABS) Module . If no DTCs are present, REFER to DIAGNOSTIC ROUTINE N : The Stability-Traction Control Indicator (Sliding Car Icon) Is Never or Always On.
ABS false activation, ABS too sensitive, ABS activates on normal stop	Front/rear suspension concern	ELIMINATE the front/rear suspension as the cause of the problem. REFER to SYMPTOM CHART: SUSPENSION SYSTEM .
	RCM mounting	CONFIRM the RCM is mounted correctly. REFER to RESTRAINTS CONTROL MODULE (RCM) .
	Loose wheel speed sensor/excessive air gap	INSPECT wheel speed sensor for looseness or excessive air gap. TIGHTEN or INSTALL new as necessary. REFER to Wheel Speed Sensor - Front and REFER to Wheel Speed Sensor - Rear .
	Parking brake shoes out of adjustment (dragging)	CHECK and if necessary, ADJUST the parking brake shoes.
The traction control system cannot be disabled	IPC message center A MyKey® restricted key is in use with the AdvanceTrac® always-on feature configured to ON	REFER to Diagnostic Routine M : The Traction Control System Cannot Be Disabled.