headlight switch drama

!$^%&^&

I didn't read the fine print, and NAPA wouldn't return the headlight switch I bought this morning, because I had plugged it in. Naturally, I wanted to return it, because I still have the same problem as before - no running lights with headlights on.

So if I assume the headlight switch is good, and I know the fuses are good, why else would I have this problem?



I wonder if I can polish the contact marks out of the contacts, so it looks like I never had the new switch in....

Do the dash lights work? Have you checked bulbs? What year?

Pull the airbox, there are connectors under it that get corroded. On my 94 there were a cuple wires that were obviously the problem, I bypassed the connector and just ran a butt connector on those wires.

Oh, yes, key data. I have a 96, 4.0, auto.

Symptoms: headlights and brake lights work, but no running lights/parking lamps, no turnsignals, no dash lights, no door buzzer. Radio works, heater fan works.

Another question: the replacement headlight switch does not have a pin on the tail like the OEM one does. Is that end pin connector supposed to be a ground? Will this replacement even work without that connector? Does anyone have a wiring diagram for what all the various pins on the headlight switch are for?

Thanks much.

And another thing: I don't like buying a kit of fuses, just to get the one correct amperage fuse I need. Where can one buy fuses singly, or at least in single amperages?

AutismZone has single value fuses in small boxes (3-5 per box) iirc. Since you're debugging an issue, I would not be surprised if you go through that many before you're done anyways...

I agree on that, though I do keep a set of all the fuses I could need in a small fishing tackle box under my passenger seat just in case I pop one while I'm out in the middle of nowhere, right next to the tire patch kit and spare bulbs.

Autismzone.....HAHAHAHA......thank kastein....I really needed that on a Monday.

BSH said:

Oh, yes, key data. I have a 96, 4.0, auto.

Symptoms: headlights and brake lights work, but no running lights/parking lamps, no turnsignals, no dash lights, no door buzzer. Radio works, heater fan works.

Another question: the replacement headlight switch does not have a pin on the tail like the OEM one does. Is that end pin connector supposed to be a ground? Will this replacement even work without that connector? Does anyone have a wiring diagram for what all the various pins on the headlight switch are for?

Thanks much.

Click to expand...

Wow almost just like mine:

93, 4.0, Auto

Symptoms: Interior, 12v recepticals don't work. Head, tail and all others work.

What did you find wrong with yours?

Well, I found out that the replacement switch DID have the ground pin, just in a different location. Since I did try the headlights without that ground connected, I figured that caused me some other electrical problems. So, I got ANOTHER headlight switch. And before I fired anything up, I went through and found a spot where a disconnected and inoperable accessory (CB or alarm) had been shorting/grounding out. I fixed that too.

I THINK the electrical problems are fixed, but I haven't been running the jeep at all. I can't drive it because there's a big hole in the floor, including under the seat mount brace, so I can't fix it. So I have a jeep with a hole in the floor and a dead battery sitting in my driveway. Depressing.

Damn that blows. I will be taking this all on soon. The jeep has tint in the back so when I get in there at night the kids have a tough time with their seatbelts. So I end up buckling them in.

Plus I would like to have working cig outlets.