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-   -   I need help with electrical problems (http://www.jeepgarage.org/f80/i-need-help-with-electrical-problems-57219.html)

jmckenzie 03-26-2013 10:27 AM

I need help with electrical problems
 
I have a 2007 Grand Cherokee SRT8. Once in a while, the headlights will go on & off quickly. Over the past few months, I have been driving & lost all gauges & electronics inside the car. There were 2 codes when the check engine light was on last month, U1403 & U1411.

The next 2 times, there was no check engine light. When it lost electronics, the engine & transmission are fine, I just had to stop & restart the vehicle to get my cluster working again.

A couple of times when I started it, the lights on the cluster went through the startup cycle a few times, then everything worked fine with no diagnostic lights on.

This morning, I drove my mother to work & it ran fine. When I got back in & started it to come back to work, the gauges didn't work, I had no clock or compass & no EVIC. The only thing showing was the gear shift indicator. I drove a little up the street to pull off & restart, but before I did the gauges started working & I had ESP, BAS & the check engine light on.

Does anyone have any idea what could be causing the problem? I've checked the grounds & I'm not sure what to check next. Possibly a problem the FCM or a short in a harness?:confused:

Sorry for the long post, but I have no idea what to check next.

robpp 03-26-2013 10:53 AM

Re: I need help with electrical problems
 
search on ignition switch and multi-stalk. both are common faults that cause issues you are having with the WK.

for about 100 you can buy both parts and replace them yourself. easy peasy/

GL

jmckenzie 03-26-2013 02:23 PM

Re: I need help with electrical problems
 
thank you for the reply, I'll check that this weekend

05wkguy 03-26-2013 03:09 PM

Re: I need help with electrical problems
 
Also get the battery checked, lots of weird electrical gremlins when it starts to go bad.

robpp 03-26-2013 04:35 PM

Quote:

Originally Posted by 05wkguy (Post 788837)
Also get the battery checked, lots of weird electrical gremlins when it starts to go bad.

Yup. Probably get that first.......you need a load test on current battery. Always for that first.

jmckenzie 03-27-2013 01:33 PM

Re: I need help with electrical problems
 
This battery is 6 months old, but I'll test it to be sure it's good

ALPINEST4RS 03-28-2013 03:21 PM

Re: I need help with electrical problems
 
I had the same problem. I replaced the multifunction switch. Good to go!!


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