Pinpoint Test B : The Parking Brake Will Not Release: Notes

Pinpoint Test B: The Parking Brake Will Not Release 

Normal Operation 

When the parking brake control is fully applied and the pedal is pressed a second time, the ratchet mechanism in the parking brake control releases the tension on the parking brake cables and conduits. The springs on both rear brake calipers provide the force necessary to return the brake pads and cables to their released position.

This pinpoint test is intended to diagnose the following: 

• Front parking brake cable and conduit
• Parking brake control
• Rear parking brake cable and conduit
• Rear brake calipers