93 cherokee i have no dash lights or running lights. i replaced two burnt out fuses #5 and # 15 and still nothing. so i un plugged and tested for power at the switch. i had power so i jumped 12v across the plug to the tail lights and the lights come on. this made me think it was the switch. i replaced the switch plugged it in and the same thing, no tail lights. the brake lights work. the headlights come on but i have no parking lights, tail lights or dash lights. i removed the rear lenses and inspected the bulbs, which are fine. i replaced the relay under the drivers side knee panel that clicks when the switch is pulled and still no luck. any help would be greatly appreciated. all fuses are tested with a voltmeter and are functioning. im stumped. Thanks - nathan

 

I don't have diagrams with me at the moment but that would greatly help you.

You need to find out what supplies the power and trace it from the beginning.

Looking for a diagram...

 

Wow looks like you did what you needed to do. What about relay not sure if there is one for those but i hope you find out what it is.

 

Looks like it's a straight shot from the headlight switch to the lights in question.

You've already diagnosed that the wiring from the switch to the lighting is good. You just need to figure out why you're not getting power out of the switch.

I'd guess there's a separate supply for the lighting in the headlight switch.

 

Got a Mickey Mouse trailer wiring set-up?

 

Look at the headlight switch diagram at the top right.

Check for 12 voltage on "B2".

Then, with the switch ON, check for voltage at "R"

Also, check for actual voltage ON fuse 15 in the fuse panel.

 

thats a good thought..i will try to find a diagram and see if i am supposed to have two seperate power sources for the headlights and the rest of it.

 

i will check this out in the morning thanks

 

Please do so I can sleep tomorrow night knowing I've been helpful.

 

no trailer harness

 

What about tonight? Are visions of resistors and diodes gonna dance in your head?

 

Ill most likely be up all night with the ****s tonight.

 

Did you get ahold of some bad food?

 

It appears that way.

 

Im having same issue but my switch is not the pull out one any help on where to look would be great