Pinpoint Test 1: The Parking Brake Does Not Apply

PINPOINT TEST 1: THE PARKING BRAKE DOES NOT APPLY

Normal Operation

When the parking brake control pedal is pressed the pedal should move a short distance, with more pressure needed to apply the pedal as it gets closer to the floor, until the brake shoes are fully applied. When the pedal is pressed, tension is applied to the front parking brake cable. This tension pulls on the RR parking brake cable, which is attached to the RR brake shoe actuator and applies the RR brake shoes. At the same time, the tension in the front cable causes the front cable conduit to attempt to straighten out. This straightening effect causes the front cable conduit to pull on the LR parking brake cable, which is attached to the LR brake shoe actuator and applies the LR brake shoes.

Possible Causes
- Brake shoes and hardware
- Front parking brake cable and conduit
- Parking brake control
- Rear parking brake cables and conduits

Diagnostic Procedure

Step 1-Step 4:

Step 5:

Step 6-Step 7: