Electrical Short Problem - Jeep Commander Forums: Jeep Commander Forum
Electronics / NAV Discussion This section contains discussion about the electronics system and NAV system in the Jeep Commander.

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  • 2 Post By rblapham
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post #1 of 7 (permalink) Old 10-20-2016, 06:54 PM Thread Starter
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Electrical Short Problem

Need some help. I have an intermittent electrical Short. Seems to happen about every 2 weeks or more. Below is a list of what works and what goes dead when it occurs. I can disconnect battery and reset system and everything will come back to life. Sometimes while driving everything will come back on its own, no battery disconnect. Any thoughts on where to start looking.
Horn-dead
Wipers dead
Rear wiper dead
Turn signals dead
Misc buttons on steering wheel. Dead
Heated seats dead
120v power outlet. Dead
Fan control for rear air dead
ESP button dead
Head lights dead
Digital compass dead
Brake lights ok
Hazards ok
Ac heat ok
Power mirrors locks ok
Sunroof ok
Interior lights ok
Radio ok
Visor light ok

If anyone has any ideas on what to check please reply
I have checked all fuses, battery voltage, even pulled fuses one by one while everything was dead to see if I could isolate a circuit.

Thanks in advance for your help
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post #2 of 7 (permalink) Old 10-20-2016, 09:54 PM
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could it be losing power to the fusebox beneath the dash?

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post #3 of 7 (permalink) Old 10-21-2016, 06:55 AM
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Sounds like the Junction block has a problem. You could try pulling the 3 plugs and re-inserting them. See my post about the junction block https://www.jeepcommander.com/forums/...explained.html
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post #4 of 7 (permalink) Old 10-21-2016, 07:50 PM
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I have seen a similar situation when the main connector to the ignition switch module is not seated properly. Try unplugging it and reseating it - in most cases this will fix it.
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post #5 of 7 (permalink) Old 10-22-2016, 11:50 AM
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Quote:
Originally Posted by rblapham View Post
Sounds like the Junction block has a problem. You could try pulling the 3 plugs and re-inserting them. See my post about the junction block https://www.jeepcommander.com/forums/...explained.html
Great info in that post/link, thanks for sharing.


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Last edited by Big Blue; 10-22-2016 at 11:52 AM.
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post #6 of 7 (permalink) Old 10-22-2016, 11:52 AM
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Quote:
Originally Posted by bdalameda View Post
I have seen a similar situation when the main connector to the ignition switch module is not seated properly. Try unplugging it and reseating it - in most cases this will fix it.
Also very good info.


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post #7 of 7 (permalink) Old 10-23-2016, 10:23 AM Thread Starter
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Thanks everyone, will try and check all these things. Appreciate the help
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