Symptom Chart

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The red brake warning indicator is always/never on	Brake fluid level switch Parking brake switch Wiring, terminals or connectors Instrument cluster Smart junction box (SJB)	REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article to diagnose the red brake warning indicator.
Rear brakes drag	Parking brake component(s)	INSPECT the parking brake system for corrosion, rust or kinked cables. REPAIR or INSTALL new parking brake components as necessary.
	Rear brake caliper guide pins	INSPECT the brake caliper guide pins, REFER to Brake Caliper Guide Pins in BRAKE SYSTEM - GENERAL INFORMATION article.
	Brake caliper	INSPECT the brake caliper guide pins, REFER to Brake Caliper in BRAKE SYSTEM - GENERAL INFORMATION article.
	Brake booster	CARRY OUT the Brake Booster Component Test. REFER to BRAKE SYSTEM - GENERAL INFORMATION article.
	Brake master cylinder	CARRY OUT the Brake Master Cylinder Component Test. REFER to BRAKE SYSTEM - GENERAL INFORMATION article.
The parking brake will not apply	Parking brake control Parking brake cables Parking brake rear wheel components	Go to Pinpoint Test A .
The parking brake will not release	Parking brake cables Parking brake control Parking brake rear wheel components	Go to Pinpoint Test B .