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)

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Brake Switch (Cruise Control): Testing and Inspection

1. If working on a vehicle with manual transmission, test the clutch pedal position switch before proceeding. Testing and Inspection
2. Disconnect 6-wire connector at amplifier.
3. Measure voltage at wiring terminal 6 (R/LG) with brake pedal pressed. Meter should read battery voltage. If battery voltage is not measured, repair wiring between switch and amplifier.