It is on the same circuit as the brake lights, but if they are not working, and the bulbs are good your switch needs cleaning or adjustment.
On the passengers side of the trans there is a fan shaped switch, loosen the 12mm bolt ( smaller of the two, and rotate the switch while a friend checks the lights. this problem is usually accompanied by an occasional inability to start the vehicle, but can be cured by jiggling the shifter.
While adjusting the switch make sure that the vehicle will start in park as well, remember to block the wheels while testing the back up lights, engine off, key in run but not start, shifter in reverse, move switch until lights come on.
Once you find this spot, hold it in place and have your helper check to make sure it will start. This may take several tries to get both working correctly.
If you have no luck the switch may be dirty, this happens a lot. Hold the post to the bottom large bolt still while you loosen the nut, then remove it, then remove the 12mm adjusting bolt on top, remove the wire connector and pull the switch away, remove the bolts on the switch and separate the halves, use electrical contact cleaner and maybe some q-tips to clean all the copper connections completely and reassemble, refit to the trans and readjust so all functions work, this switch controls back up and start safety.
Caution! always hold that bottom bolt while tightening the large nut, this is connected to the gear adjuster and you could damage the internals if it isn't secured while you do it.
Check fuse number 4 on the inside fuse panel, something made it blow though so expect it to go again until you find the reason.
check your back up light switch
Its probably a problem in the wiring to the lights themselves. Just follow the wires back until you find a problem in the wire.
Defective back up switch.
my 83 jeep wagoneer with a 360 engine my ignition switch does'nt start my jeep i have replaced coil and starter ,when i jump the coil it starts
The back up lights on an E350 Ford Econoline Van won't work if the fuse has blown, the bulbs are bad, or the wiring has become disconnected. The reverse sensor also controls when and if the lights turn on.
Pull straight out, not up towards you, that changes the lights from low beam to high and back, on the handle where you cut your lights on and off. The end cap is actually the switch for the fog lights.
Back up lights does not work on my 90 modle 240 gl
Check your fuses.
the #3 slot is for the parking lights #11 is for the warning lights #21 is for hazzard lights and #26 is the back up lights the #3 slot is for the parking lights #11 is for the warning lights #21 is for hazzard lights and #26 is the back up lights
because your husband is to lazy to fix them
Type your answer here... It could be the back up light censor. Depending on where it's located, you may have to drop the tranny. that could be where the censor is located. I had the same problem in my 1998 grand Cherokee and that's where it was located. the censor is about $20.