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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.
Attempt this first since the switch costs nearly $300 bucks.
On the passengers side of the trans just behind the bell housing 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 apply di-electric grease 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.
What else can I help you with?
1998 Grand Cherokee Larado fan not blowing Is this a relay or fan motor and how do I find and fix.?
Use a test light connected to the fan motor - if it lights fan motor is bad if it does not light could be fuse, relay, switch, or resistor
How do I open the Rear glass on 1998 grand Cherokee?
If it is equipped with the flipper glass the switch is above the license plate.
Where is the High Mount Brake Light in a 1998 Grand Cherokee?
If equipped, it is above the liftgate glass.
What kind of front brakes does a 1998 Jeep Cherokee have?
A 1998 Jeep Cherokee has disc brakes in the front.
Will a 1993 grand Cherokee transmission fit a 1998 grand Cherokee?
Will bolt up, but will not shift. The 1998 is controlled differently by the computer.
Why would the reverse lights not work on a 1998 jeep grand Cherokee if the light bulbs are good?
The reverse wire on the side of trans mite have came off or you may have afalty reverse switch on trans or a bad ground from bolbes.
What could be wrong with my 1998 jeep grand Cherokee Laredo if the reverse lights won't work and you've checked the bulbs and replaced them?
the reverse switch in the transmission
What does a neutral safety switch do 1998 Jeep Grand Cherokee?
It only allows starting in park and neutral and it turns on the reverse lights.
Where is the backup light switch on a 1998 Dodge Dakota. My backup lights come on between neutral and reverse?
The backup light switch is mounted on the transmission casing.
Where is the reverse light switch on a 1998 cavalier?
It is inside the pintal switch mounted to the top of the transmission. goes over the shift lever.
What could cause the brake light to come on and stay that way on your 1998 jeep Cherokee classic?
A defective or out of adjustment brake light switch.
What is the function of the neutral safety switch on a dodge durango 1998?
It only allows starting when in Park and Nuetral. It also is the reverse light switch.
How do you locate and change reverse light switch opel astra 1998?
you should see and find the switch just under your brake pedal. it is easy to remove and fit
How do you fix the reverse lights on a 1998 Hyundai Excel All other lights work?
The reverse light sensor switch on the gearbox needs replacing. The switch is normally located on top of the gearbox & around the middle of underneath the air intake box.
How do you fix reverse lights on a 1998 F150--all fuses are good and both bulbs are good--neither reverse light comes on when going in reverse--this is a manual 5 speed truck?
When the shifter goes to the reverse position a switch is depressed to turn on the back up lights. The switch is most likely on the top of the transmission.
How do you adjust your reverse light on a 1998 dodge ram 1500?
The reverse lights are not adjustable.
Where is the light switch on a 1998 ford F350 for the dome light?
turn head light switch till it clicks and theses your dome light switch...
