'92 Cherokee headlamp switch malfunctioning

[fitzy78]

I am having some very frustrating problems with my headlamp switch. When you pull it out to the parking/tail light position or the low/hi-beam position, no lights come on at all. My daytime running lights (headlights) work fine, that is to say, with the switch in the 'off' position. I have replaced the headlamp switch assembly with a new one (actually an aftermarket one), and I am having identical problems. With both the original switch and the replacement, I am able to get the parking lights to come on, but only with the button pulled out to a point just before it would click in to the parking light position. Are you following this? It's very sensitive, and if I pull the button out any further than this, I lose those lights again. I've had various electrical problems with my Jeep from time to time, but nothing like this. It seems like I am all around the solution, and I hope I don't have to bring it in to a shop. Labour sucks, as we all know!

Anyone have any ideas or suggestions??

[89ltd]

does your dome light and brake lights work, and hazard lights?

[fitzy78]

Originally Posted by 89ltd

does your dome light and brake lights work, and hazard lights?

Yup, all are fine. I'm totally baffled. I visited a Jeep dealer today and they think it may end up being an eroded wire somewhere. God I hope not. 6 hours of tearing apart the wiring, and the mechanic says "Hey, there's the problem!!"" Loverly.

[Saudade]

I'd pull the switch again and test it. If you can get the lights to come on, then the switch IS making contact, but apparently losing it when it settles into the detent.