Operation CHARM: Car repair manuals for everyone.

Description





HOW TO READ WIRING DIAGRAMS


Description







SWITCH POSITIONS
Switches are shown in wiring diagrams as if the vehicle is in the "normal" condition.
A vehicle is in the "normal" condition when:





- ignition switch is "OFF",
- doors, hood and trunk lid/back door are closed,
- pedals are not depressed, and
- parking brake is released.

MULTIPLE SWITCH
The continuity of multiple switch is described in two ways as shown below.
- The switch chart is used in schematic diagrams.
- The switch diagram is used in wiring diagrams.