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 Circuit

Fig. 4 Control Unit Electrical Connector Terminal Identification.:






1. With brake pedal depressed check voltage at terminal 4 of control unit electrical connector.
2. If within 10-14 volts, brake light switch circuit is satisfactory.
3. If not within 10-14 volts, check wires, connectors and fuses.
4. If circuit, connectors and fuses are satisfactory, check the brake light switch.