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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Windows: Description and Operation


With the Ignition Switch in ACC or RUN, current flows from the P/W Circuit Breaker to the Left and Right Power Window Switches. The switches send current through the Window Motors in one direction for down and in the other direction for up. In the AT REST position, all switches ground both wires of each motor.

To raise the window, current flows through the UP side of the switch, through the motor, through the motor circuit breaker, and through the DN side of the switch to ground. To lower the window, the current flows in the opposite direction.