headlight and electrical gremlins - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 4 Old 03-06-2015, 01:07 PM Thread Starter
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headlight and electrical gremlins

So my 07 headlights flicker and won't turn off. Already replaced the multifunction switch. Right now both multifunction switches are disconnected and the headlights are on. Anyone have any other ideas?


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post #2 of 4 Old 03-07-2015, 12:21 PM Thread Starter
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Nobody??


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post #3 of 4 Old 03-07-2015, 03:48 PM
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No input available from the multifunction switch will cause the headlights to come on as a fail-safe feature.
Loss of CAN bus communication will do the same thing.

The best way to troubleshoot the headlight system is with the dealer scan tool because the system involves CAN and LIN communications to the TIPM.
Their scan tool can monitor communications and point out where the problem is. Otherwise, you can use a DMM to check for continuity at different points along the various circuits.

2008 Unlimited Rubicon Automatic
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post #4 of 4 Old 03-09-2015, 09:28 PM Thread Starter
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you could have just said I'm fucked and have to take it to the dealer.


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