Backup Lamp: Description and Operation

CIRCUIT OPERATION
In the RUN position, the ignition switch connects circuit A1 to circuit A38. The A38 circuit connects from the ignition switch to the fuse block and powers a BUS bar for fuse 11, a 10 Amp.

Circuit A1 is protected by a fusible link located near the auxiliary jumper post on the left toe box.

Circuit F20, from fuse 11, connects to the back-up lamp switch. When the operator places the vehicle in REVERSE, circuits F20 and L1 are connected. The L1 circuit connects from the switch and supplies voltage to the back-up lamps.

Ground for the lamps is supplied on circuit Z1 and terminates at the rear body ground.