Operation CHARM: Car repair manuals for everyone.

Backup Lights

When the Ignition Switch is in RUN, voltage is applied through the TURN-B/U Fuse to the Park/Neutral position and Backup Lamp Switch. With the Transmission in REVERSE, voltage is applied to the Backup Lamp, which is permanently grounded through Grounds G106 and G107. When voltage is applied to LT GRN (24) wire, the Backup Lamps are on.