Backup Lamp: Description and Operation

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 LH and RH Backup Lamps, which are permanently grounded through Grounds G400 and G401 respectively. When voltage is applied to LT GRN (24) wire, the Backup Lamps are on.