use a test light with the alligator clamp attached to a ground and use the probe to test each side of the switch for power
You have to diagnose it by process of elimination. Check the master switch, check for power at the master switch, check the wiring for damage where door hinges, test for power at the motor, test the motor, etc.
If you have climate control check the blower module. The power wire mounted on it's circuit board overheats. The module is located on the firewall under the glove box. Check module and see if the power wire is burnt. You can get an repair kit from the dealer to fix it.
Check the fuses.
on my '96 grand Cherokee the door switch was not depressed enough. you can replace it by opening the door removing 2 screws on the switch pull it out unplug it put another one in and put it back together. If you cannot find another switch pull the switch loose and place a small flat washer behind the switch on top and bottom and screw back together.
it does go thru the turn sig switch , did you check for power at the switch and does it come out when you press brakes? if so the next place it goes is into turn sig sw... Rick ASE L-1 Master TransMichigan.com
Check the brake light switch located on the brake pedal lever. If there is power to the switch but nothing coming out replace it. Did you check the bulbs? Is there power to the rear sockets?
Check socket for power/ground corrosion Check stop light switch for power on one side Check fuse
You need to check the wiring for power to the bulbs.
Check your fuses first. If those check out, pull out the tail light assemblies. Check the bulbs. If those check out, test for power at the connectors to the tail light assemblies with a test light. If you have power to the brake light circuit (with the brake applied), then the issue is in the tail light assembly. If not, go to the brake light switch located at the top of the brake pedal. Test for power at the input... there should be constant power to it. If not, there's an issue with the power supply, and you'll have to trace it to the fault. If so, test for power at the switch output with the brake pedal depressed.. if there's no power there, the switch is faulty. If there is power there, then you'll have to trace the wiring towards the tail lights to find the fault.
check the fudes check headlights for power then check light switch
Check all your fuses first Then I would check for power at switch with a test light With key on you should have power on one side of switch .If you have power going in next step is to check with switch activated you should have power out . If you have power in and out of switch chances are motor is bad but you should check for power at motor also.Hope this helps.
You have to diagnose it by process of elimination. Check the master switch, check for power at the master switch, check the wiring for damage where door hinges, test for power at the motor, test the motor, etc.
It should be for the rear wiper or rear defroster. I have a 1992 (no power switch), but on the left side of my column are the fog light and rear defrost switches, and on the right is the rear wiper switch.
I can not understand your question.
check the switch! then check the harness to the bulb/switch make sure you have a power and a ground
Use a test light or a multi-meter to check for power going through the switch when it's depressed or for ohms depressed.
Check to make sure you have power at the brake light switch, if you have power at the switch, depress the brake pedal, and check for power out of the switch, if no power out with the brake pedal depressed, you need a new brake pedal switch.