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Old 01-16-2013, 07:06 PM   #1 (permalink)
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Bad PCM???

ABS
ESP
BAC



All lights are on and I did the key dance to find trouble code U1417. This code led me to think I had a loose drive shaft nut or bad abs sensor. I checked the nut and it was torqued just fine. The sensor looked ok and as I was praying that it was just a bad sensor due to the salty roads in NY I thought to myself lets hook up the scan tool...

U1417- IMPLAUSIBLE LEFT WHEEL DISTANCE SIGNAL RECEIVED
U0103-LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE
U0141-lost Communication With Front Control Module (tipm)
U1411-IMPLAUSIBLE FUEL VOLUME SIGNAL RECEIVED
U1403-IMPLAUSIBLE FUEL LEVEL SIGNAL RECEIVED
U110C-LOST FUEL LEVEL MESSAGE
U110F-LOST FUEL VOLUME MESSAGE
U110E-LOST AMBIENT TEMPERATURE MESSAGE



I remembered I had a problem with my car starter not working proper a few weeks back that and led me to think it had a bad abs module. Now I think it has to be either a bad PCM or the can bus is bad.

The only other thing I can come up with is that my battery is on its way out. The voltage during start up is too low and the signals are getting lost. I hope someone can help me figure this out!
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Old 01-16-2013, 09:05 PM   #2 (permalink)
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Bumpski!!!

Help!
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Old 01-16-2013, 09:28 PM   #3 (permalink)
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Ouch... sorry for your troubles! It could be a battery issue but it does sound more canbus related... when you installed your tranzformer I think I remember you saying you soldered the connections... am I right?

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Old 01-16-2013, 09:36 PM   #4 (permalink)
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I ended up going with the quick connects even know I don't like using them with our bad winters here. I wanted to but then thought about removing the unit incase of anything happening... I thought can bus as well could be the problem...

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Old 01-16-2013, 09:37 PM   #5 (permalink)
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Test your battery to make sure it's putting out the right amount of power too. It does sound like a canbus issue so I'd check the main harness connection to the PCM and to the front control module.

Make sure ALL connections (battery, ground, PCM, FCM) are clean, with no corrosion or dirt present.
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Old 01-16-2013, 09:40 PM   #6 (permalink)
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Where is the front control module located?
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Old 01-16-2013, 09:41 PM   #7 (permalink)
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I've never dug it out so let me look at the manual...be right back...
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Old 01-16-2013, 09:44 PM   #8 (permalink)
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It's the module attached to the front of the power distribution box (fuse box) under the hood.

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Old 01-16-2013, 09:49 PM   #9 (permalink)
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That's where I figured. Thanks! Ill ensure all connections are tight and grounds are clean and the battery has enough juice. Lets just hope I find something!
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Old 01-17-2013, 03:28 PM   #10 (permalink)
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Re: Bad PCM???

cleared all the codes and checked all connections. They are tight. Grounds are clean and tight. I disconnected the battery for about a min. After I started it the 3 lights remain on with no codes. is there a reason for the lights on without a code?

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