Parking Brake
Symptom Chart(s)
Symptom Chart: Parking Brake and Actuation
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Preliminary Inspection
The first indication that something may be wrong in the parking brake system is a change in the feeling through the parking brake control. The parking brake not holding on an incline or dragging after being released are also indicators of system concerns. Check the operation of the parking brake system with the vehicle on a hoist and the parking brake control fully released.
Verify the customer concern. Visually inspect for obvious signs of mechanical damage. If an obvious cause for an observed or reported concern is found, correct the cause. If the cause is not visually evident, verify the symptom and go to the Symptom Chart below.
Condition | Possible Sources | Actions |
|---|---|---|
The red brake warning indicator is always illuminated | Parking brake not fully released Low brake fluid level Wiring, terminals or connectors Brake master cylinder inoperative | DIAGNOSE the red brake warning indicator. REFER to: Instrumentation, Message Center and Warning Chimes (413-01A) . |
The parking brake does not apply/hold vehicle | Refer to the Pinpoint Test | GO to Pinpoint Test A |
The parking brake will not release | Refer to the Pinpoint Test | GO to Pinpoint Test B |
The parking brake does not apply/hold vehicle (SVT Performance Package) | Refer to the Pinpoint Test | GO to Pinpoint Test C |
The parking brake will not release (SVT Performance Package) | Refer to the Pinpoint Test | GO to Pinpoint Test D |
Pinpoint Tests
The Parking Brake Does Not Apply Or Does Not Hold Vehicle
Normal Operation and Fault Conditions
When the parking brake control is pulled, the parking brake equalizer pulls on both rear parking brake cables, which are attached to the parking brake actuators, and applies the brake shoes/pads.
Possible Sources
Parking brake cable(s) Parking brake control Rear brake caliper(s)
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.