Backup Lamp: Description and Operation

Vehicles equipped with an automatic transmission, the TRN-B/U fuse in the IP fuse block supplies battery positive voltage to the park/neutral position switch. Vehicles equipped with a manual transmission, the TRN-B/U fuse in the IP fuse block supplies battery positive voltage to the back up lamps switch. When the driver places the gear selector lever in the REVERSE position, the current flow is from the park/neutral position switch or the back up lamps switch, to the back up lamps. The back up lamps are grounded at G304.