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 MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEM CONTROLDIAGNOSIS AND TESTINGANTI-LOCK CONTROLSYMPTOM CHART

2005 Ford Taurus SEL, 4D Sedan

Symptom Chart

2005 Ford Taurus SEL, 4D SedanSECTION Symptom Chart

SYMPTOM CHART (ANTI-LOCK CONTROL)

Condition	Possible Sources	Action
No communication with the anti-lock brake system (ABS) module	Smart junction box (SJB) fuse 27 (10A) Circuitry. ABS module. Controller area network (CAN) communication link.	GO to PINPOINT TEST A .
The red brake warning indicator does not self-check	Low brake fluid warning switch. Circuitry. Instrument cluster. Ignition switch. Parking brake.	REFER to INSTRUMENT CLUSTER .
The red brake warning indicator stays on when the ignition switch is in RUN	Low brake fluid warning switch. Circuitry. Instrument cluster. Ignition switch. Parking brake.	REFER to INSTRUMENT CLUSTER .
The yellow anti-lock brake system (ABS) warning indicator is always on	Circuitry. ABS module. Instrument cluster.	GO to PINPOINT TEST H .
Spongy brake pedal with no warning indicator	Air in brake hydraulic system.	GO to PINPOINT TEST I .
Poor vehicle tracking during anti-lock function	Air in hydraulic brake system. Hydraulic control unit (HCU). Base brake system.	GO to PINPOINT TEST J .
The traction control switch indicator is inoperative	Circuitry. Traction control switch. Instrument cluster.	REFER to INSTRUMENT CLUSTER .
The traction control indicator stays on continuously with no DTCs retrieved	Circuitry. Instrument cluster. Traction control switch.	REFER to INSTRUMENT CLUSTER .

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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.