Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Parking Brake Warning Switch: Testing and Inspection

Parking Brake Switch Test





1. Disconnect the parking brake switch connector (A) from the switch (B).
2. Check for continuity between the positive terminal (C) and body ground.
With the parking brake pedal pressed, there should be continuity. With the parking brake pedal released, there should be no continuity.

NOTE: If both the ABS indicator and the brake system indicator come on at the same time, check the ABS first. If the parking brake switch/fluid level switch is OK, but the brake system indicator does not function, check the ABS (For Canada model: do the input test for the daytime running lights control unit first).