Where is a backup / reverse light switch ?

Question

For a 95 Cadillac Eldorado Northstar.
Under the console shifter cover plate I only found a light bulb.
I can see the linkage going into the tranny but no wires.

The bulbs and fuses are all good for the backup lights,
so I'm sure the problem is the switch.
But, I just can't find that darn switch.

Answer 1

Transmission Range (TR) Switch
Notes

TRANSAXLE RANGE SWITCH
The Transaxle Range Switch (TR) switch (formerly called a PRNDL, P/N or NSBU switch) is mounted externally on the transaxle at the manual shaft.







Description and Operation
Notes

TRANSAXLE RANGE SWITCH
The Transaxle Range (TR) switch (formerly called a PRNDL, P/N or NSBU switch) is mounted externally on the transaxle at the manual shaft. The TR switch provides information to the PCM about the selected gear range of the transaxle. The TR switch identifies whether the transaxle is in PARK/NEUTRAL (P/N) or any of the five drive ranges (R/D4/D3/D2/D1). The TR switch is also used to illuminate the backup lamps when the transaxle is in REVERSE (R).

PCM INPUT
The PCM uses TR switch status for idle speed control, and also as a backup to the transaxle pressure switch. If the transaxle pressure switch is faulty, the PCM will select a transaxle gear based on TR switch status. A faulty TR switch should set a Diagnostic Trouble Code.

Answer 2

The switch, formerly called the "Neutral Safety" Switch, then referred to as the PRNDL sensor is located on the transmission near the linkage connection, below the master cylinder.

Good Luck and Merry Christmas

Answer 3

many times a change is fixed onto the transmission with 2 wires on it, and is oftentimes close ot the linkage. Unhook the connector with the two wires on it after which you would be able to unscrew the change out of the transmission physique. opposite steps to place in the the hot change. wish this facilitates.

Answer 4

i own a repair shop,and if im not mistaken its built in to the main starting switch on this one,,i have done in my shop,and that was a while ago,,but i think thats what we had to replace on the one we did,,good luck,i hope this help,s.have a good x-mas.