Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSLINCOLN2009NAVIGATOR L RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEMSDIAGNOSIS AND TESTINGANTI-LOCK CONTROLSYMPTOM CHART

2009 Lincoln Navigator L RWD

Symptom Chart

2009 Lincoln Navigator L RWDSECTION Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the ABS module	Fuse(s) Wiring, terminals or connectors ABS module	REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the no communication problem.
The yellow ABS warning indicator is always/never on	DTCs are present in the ABS module Wiring, terminals or connectors Instrument Cluster (IC)	RETRIEVE and RECORD all ABS module DTCs. GO to the ABS MODULE DTC CHART . If there are no ABS module DTCs present, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES article to diagnose the IC.
The yellow stability/traction control indicator ("slidingcar" icon) is always/never on	DTCs are present in the ABS module Wiring, terminals or connectors IC	RETRIEVE and RECORD all ABS module DTCs. GO to the ABS MODULE DTC CHART . If there are no ABS module DTCs present, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES article to diagnose the IC.
The sliding-car icon flashes once every 2 seconds	Stability/traction control system calibration required	CALIBRATE the stability/traction control system. REFER to STABILITY/TRACTION CONTROL SYSTEM SENSOR CALIBRATION .
Unintended ABS activation, ABS too sensitive, ABS activates on a normal stop	Brake drag	ELIMINATE the base brake system as the cause of the problem. REFER to Diagnosis and Testing in BRAKE SYSTEM - GENERAL INFORMATION article.
	Parking brake shoes out of adjustment (dragging)	CHECK and, if necessary, ADJUST the parking brake shoes. REFER to PARKING BRAKE & ACTUATION article.
	Wheel speed sensor tone rings Wheel speed sensor Wiring, terminals or connectors	Go To PINPOINT TEST K .
The stability/traction control system cannot be disabled	Wiring, terminals or connectors Stability/traction control switch ABS module	Go To PINPOINT TEST L .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.