Regal V6-191 3.1L VIN M SFI (1995)
Backup Lamp: Description and Operation
Voltage is applied at all times through the R/CMPT REL Fuse to the Transaxle Range Switch (4 speed) the Park/Neutral Position Switch (3 speed).
Whenever the gear selector lever is shifted to "REVERSE," the Switch closes and voltage is applied to the Backup lamps.