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Unread 04-25-2012, 02:31 AM   #1
talkboxier
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2006 WK 
 
Join Date: Apr 2012
Location: Kailua-Kona, Hawaii
Posts: 16
Funky head light problem...

I have had this headlight problem for a couple weeks now and its driving me crazy. Let me try and describe some of the symptoms I am having.

My right head light seems to flicker on and off while driving my car. Sometimes it stays on and sometimes its just stays off. When it goes off, the whole light assembly stops working. I don't have the side makers, turn signal, or highs. everything is out.

A couple other scenarios are: the headlight comes on but the blinker doesn't work, when I unlock my doors only the side marker and turn signal comes on, or the whole assembly comes on but it is really dim....

So I thought it was a connectivity issue or a fuse. Tried pulling fuses to see if any lights came off, got nothing. Don't know if I was looking in the right places. Went to check the voltage supply to the lights with my multimeter. So I put the ground probe to the ground on the headlight connector, and the positive to the positive, but nothing. So I tried to put the ground probe on the engine, and got 12 volts from the positive. So I thought that was strange. So then, for some reason, I put the positive probe on the ground on the light connector, and IT ALSO WAS 12 VOLTS!!! is this normal?

Has anyone got any advice for this problem?

This is for a 2006 WK Grand Cherokee Laredo

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Unread 04-25-2012, 06:14 AM   #2
TurboDiesel
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2008 WK 
 
Join Date: Apr 2011
Location: langley, BC
Posts: 1,906
maybe its the whole light wand that comes off the steering column?
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Unread 04-26-2012, 12:21 AM   #3
talkboxier
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Location: Kailua-Kona, Hawaii
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Ok, so I messed around with some wires and some fuses, still got nothing. The only thing that seemed to make the assembly light up again is by pounding on the side marker light. Any ideas?
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Unread 04-26-2012, 01:16 AM   #4
kllshadow
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Location: Altoona, PA
Posts: 367
sounds like a wiring problem or bad bulb ballast
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Unread 04-26-2012, 02:49 AM   #5
talkboxier
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Location: Kailua-Kona, Hawaii
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Well just took the light assembly apart. checked all the wiring on the assembly itself. everything checks out fine. Now I am thinking it might be the light switch... but where could I find the light ballast?
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Unread 04-28-2012, 01:52 AM   #6
talkboxier
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Location: Kailua-Kona, Hawaii
Posts: 16
Quick update, found out what the problem was. It was a bad ground. All cleared up now.
.
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Unread 04-18-2013, 12:33 PM   #7
cwinse
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bad ground?

i have almost the same problem except mine is passenger side and headlights are out all the time, tho the park light does come on once in a while. did some quick checking online and thought it was the front control module as it controls both power and ground, but that stupid thing is $484 from my local dealer. where did you find this "bad" ground located within the vehicle?
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