Turn signal activated interior light or wiper. Now my jeep doesn’t start. - JeepForum.com
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post #1 of 5 Old 10-07-2019, 12:56 PM Thread Starter
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Turn signal activated interior light or wiper. Now my jeep doesn’t start.

A few months ago, my Jeep Compass 2008 started flashing the interior light when I used the turn signal. It wasn’t all the time, but it occurred on daily basis. I replaced the turn signal switch, but the issue was still there. In the last couple of weeks, the turn signal started activating the wipers as well. Then I started having issues starting the car, but I tried a few minutes later and I was able to start it. The dashboard started blinking once while driving. I think it has some kind of short circuit, because now the battery is going dead when I don’t use the jeep for a day, I test the battery and the alternator and they are fine. I started checking the wires where the turn signal switch is including the wiper switch and everything looks ok. I am wondering if I need to replace the SCCM (Steering Column Control Module) or the WCM (Wireless control Module) or both. I have the idea that WCM can only be replaced at the dealership since it needs to be programmed. I’m trying to avoid this since it will cost me a small fortune.

Last night, I unplugged the battery, hoping some electronic components will reset and perhaps the issue to be resolved. However, this morning I connected the battery again and I wasn’t able to start my jeep. Do you have any ideas on what should I check? Any suggestion will be highly appreciated.

I found the issue with my jeep not starting. It was a battery cable that for some reason it has an additional connector that it was loose. The jeep is running again. I think this also explains the blinking of the dashboard since it was loosing connectivity while the car was moving. The issue with the turn signal activating the wiper and interior light is still there.

Last edited by jmaynez; 10-08-2019 at 09:58 AM. Reason: I found the problem for a part of the issue.
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post #2 of 5 Old 10-08-2019, 12:38 AM
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So I have a 2011 Compass and I have had in the few months of ownership an indicator problem, mine however will blink left before right when you switch to go right.

So after some research on it I need to investigate the Totally integrated power module (TIPM, you'll see it mentioned in manuals) which is a bunch of relays that include main control relays for main Power, indicators, lighting etc.

By the sounds of your problem I'd say you might need to have a look at that too.

Apparently that relay module (which I think contains just normal relays) is located under the front wing (near the battery) which you access by taking the inner arch out. Certainly can hurt to see if there is corrosion in there as thats possibly a job on my to do this weekend!

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post #3 of 5 Old 10-08-2019, 10:00 AM Thread Starter
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Thanks this is good information. I definitely will look at the TIPM. I will clean it first in case there is some kind of short circuit. Hope this solves the issue. Thanks a lot!
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post #4 of 5 Old 01-07-2020, 03:09 PM Thread Starter
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Thanks Bugsymalone666! Three months ago I cleaned up the relay module and it solved the problem. I found a video online and took it apart and I used PCB cleaner. I took my Jeep for a test and the issue was still there, but next day the issue disappeared and it hasn’t happened. I am sure that was the problem.
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post #5 of 5 Old 01-07-2020, 04:43 PM
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Hmmm, the MG Chemicals PCB cleaner is 99.9% isopropyl alcohol - I wonder if they have a special ingredient to give it an edge ?

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