Dash light/ Tail light not working when headlights are on
#1
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 45
Likes: 2
From: Utah
Year: 1992
Model: Cherokee (XJ)
Engine: 4.0
Dash light/ Tail light not working when headlights are on
So I just replaced my headlight switch because my headlights wouldn’t turn on nor would my dash lights or my taillights. Now the headlights turn on, but my dash lights and tail lights won’t. I know when my headlights switch went out my dash lights still worked, but I pulled out my **** and it pulled straight out and a bunch of sparks flew, I think a fuse may have blew. But the issue with that theory is the dash lights work if you have the **** just barely pulled out and the tail lights work too. Any clue as to what’s going on?
#3
Senior Member
Joined: Sep 2016
Posts: 708
Likes: 342
From: North East USA
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
"bunch of sparks flew, I think a fuse may have blew. But the issue with that theory is the dash lights work if you have the **** just barely pulled out and the tail lights work too. Any clue as to what’s going on?[/QUOTE]
Really have no idea but having been through a headlight switch session recently have a couple thoughts;
1) if the taillights and dash work if you pull out the switch a little I suspect the switch.
2) there are some really terrible aftermarket switches out there
3) need to be careful your switch is for your model year.
4)not clear from your post when the sparks happened but you need to disconnect the battery when you work on any of this stuff or you might let the smoke out. You may have but just mentioning it . No telling what got fried when the sparks happened
5) check the wiring/connector. It could have gotten fried when the original switch failed
6) get a headlight relay harness
Really have no idea but having been through a headlight switch session recently have a couple thoughts;
1) if the taillights and dash work if you pull out the switch a little I suspect the switch.
2) there are some really terrible aftermarket switches out there
3) need to be careful your switch is for your model year.
4)not clear from your post when the sparks happened but you need to disconnect the battery when you work on any of this stuff or you might let the smoke out. You may have but just mentioning it . No telling what got fried when the sparks happened
5) check the wiring/connector. It could have gotten fried when the original switch failed
6) get a headlight relay harness
Last edited by exasemech; 02-10-2022 at 03:31 PM.
#4
Thread Starter
Junior Member
Joined: Sep 2020
Posts: 45
Likes: 2
From: Utah
Year: 1992
Model: Cherokee (XJ)
Engine: 4.0
So the same thing was happening with the old switch. If it was pulled out a little the dash lights would work. And the sparks were from when it failed. I pulled the **** out of the switch by accident trying to turn my headlights on and sparks flew.
#5
#6
CF Veteran
Joined: Jun 2022
Posts: 1,102
Likes: 232
From: England
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Are you saying that the dash & tail lights come on with the switch pulled out to the first position, as they should, but go out when you pull the switch out the 2nd for headlights?
You specifically mention dash & tail lights, what about position/parking lights, front sidemarkers & tag lights?
You specifically mention dash & tail lights, what about position/parking lights, front sidemarkers & tag lights?
#7
Are you saying that the dash & tail lights come on with the switch pulled out to the first position, as they should, but go out when you pull the switch out the 2nd for headlights?
You specifically mention dash & tail lights, what about position/parking lights, front sidemarkers & tag lights?
You specifically mention dash & tail lights, what about position/parking lights, front sidemarkers & tag lights?
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#8
CF Veteran
Joined: Jun 2022
Posts: 1,102
Likes: 232
From: England
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Wish I could help, but once we're into modules I'm lost - I mean I don't even know what a "lamp outage module" is. Just out of curiosity though, what doesn't work? I'm guessing the alarm.
#9
Yes, yes, I know, people dont want to
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