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

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Brake Light Switch: Testing and Inspection

Brake Pedal Position Switch Test




1. Disconnect the 4P connector (A) from the brake pedal position switch (B).
2. Check for continuity between the No. 1 and No. 2 terminals.
- There should be continuity when the brake pedal is pressed.
- There should be no continuity when the brake pedal is released.

3. Check for continuity between the No. 3 and No. 4 terminals.
- There should be no continuity when the brake pedal is pressed.
- There should be continuity when the brake pedal is released.

4. If necessary, adjust or replace the switch, or adjust the pedal height.