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GoonerYank 10-11-2012 01:23 PM

Electrical problems, dealer diagnosis. Advice?
I have a 2007 Sahara 2DR Manual in case any of that information is needed. This is my first Jeep and I bought it about 2 months ago with 29,000 miles on it.

Last week I took it to a dealer (not where I bought it as it is too far away) because I had an issue with some lights on the dash. First, my ESP/BAS light and my Traction Control lights are on at all times. I have found that the Traction Control light will go off if I press the ESP button behind the shifter 3 times but nothing will get the ESP light to turn off. Second, my air bag light comes on intermittently. Usually it is after ten minutes or more of driving but can happen when I am driving straight, turning, or sitting at a red light. After some research I assumed it was the clockspring. The dealer said differently and told me that it was a failed connection with the Steering Control Module. They also quoted me a fix of just over $500. I haven't been able to find out anything about a Steering Wheel Control Module and was wondering what this forum thinks.

I also have another issue that I thought I had solved by sheer luck. Two weeks after I bought the Jeep the BRAKE light on the dash started coming on while I was driving. At the same time the ABS light would come on as well. Whenever the lights are on my speedometer drops to 0 and stays there. When the lights go off the speedometer begins working again. The lights can go on and off 5 or 6 times during a 15 minute drive. The problem went away after I moved a Blue Wire with a white stripe coming from the TIPM. The wire was caught between two plastic pieces and was a bit crimped. By moving the wire and applying some electrical tape the problem went away. Now, after a month and a half with no issue, the problem has returned. I immediately checked the wire but found no more problems. I'm not sure what else I could check.

I know this is a bit long but I'd appreciate any advice the community could offer me. Thanks!

SilverSport 10-11-2012 07:29 PM

I suggest checking all the other connections at the TIPM.

kbwwolf 10-11-2012 07:38 PM


Originally Posted by SilverSport (Post 2881839)
I suggest checking all the other connections at the TIPM.

^^^ Try this.

Next, unhook your battery completely for a little while (overnight won't hurt it, but should only take 10 mins or so). Hook it back up and see if that does anything.

If neither of those works, check your ground wire on the ECU. If it's loose it can cause electrical mayhem that sounds a lot like what you're experiencing. I woulda recommended this one first, but the other two are easier, so... The ECU's the thin silver thing by your windshield wiper refill tank. Ground wire is attached to the inside screw holding it in place. Photo below...

See the hint of a bar code on the back of it? The screw that holds the ground wire will be on the far left-hand side. The ground wire has a metal loop that should be tightened down with the screw. Sometimes it can pull loose.

I suck with electricity, so if you get fried, it wasn't my fault...:D

GoonerYank 10-11-2012 09:41 PM

Thanks for the advice, I'll have to check it out tomorrow since it's already dark on the east coast. Should I be able to inspect everything going in to the TIPM from above or will I have to figure out a way to check it out from beneath?

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