1. Verify the customer concern by operating the parking brake system.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Mechanical | Electrical |
|
Parking brake
warning circuit.
REFER to: Instrument Cluster (413- 01 Instrument Cluster, Diagnosis and Testing). |
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart
Symptom | Possible Sources | Action |
The parking brake will not apply |
|
GO to Pinpoint Test A. |
The parking brake will not hold the vehicle | Parking brake control. | GO to Pinpoint Test A. |
The parking brake will not release |
|
GO to Pinpoint Test B. |