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 Switch (Cruise Control): Testing and Inspection

1. Disconnect six-way connector from stop lamp switch.
2. Using an ohmmeter, check continuity at switch side of connector as follows with the brake pedal released:
a. Continuity should exist between pins 1 and 4.
b. Continuity should exist between pins 3 and 6.
c. Continuity should not exist between pins 2 and 5.
3. Check continuity at switch side of connector as follows with brake pedal depressed:
a. Continuity should not exist between pins 1 and 4.
b. Continuity should not exist between pins 3 and 6.
c. Continuity should exist between pins 2 and 5.
4. If above results are not as specified, adjust or replace stop lamp switch as needed.