Gauge cluster mystery- 2004 LJ 42RLE trans -
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post #1 of 4 Old 07-19-2010, 05:58 PM Thread Starter
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2004 LJ Wrangler 
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Location: Forest Hill, MD
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Gauge cluster mystery- 2004 LJ 42RLE trans

Ok guys...I have sort of a mystery on my hands. Last week, my gauges started shutting off and coming back on during driving. Hitting the gauge cluster always seemed to be able to bring them back on, which led me to believe there was a loose connection back there. I took the cluster out of the dash, cleaned the terminals and plugs with rubbing alcohol, and then re-connected. It seemed to work briefly, until a day later, when my gauges started acting up again.

Last night, I got the error code P-1698 (No CCD/J1850 messages received from the electronic transmission control module (EATX) or the Aisin transmission controller). Okay, I thought...I'll just check to see if there is a loose connection with the TCM. The connection was fine, and my jeep ran like normal and the trans shifted like normal. (I was told that the tranny wouldnt shift out of 1st gear if the ECM was throwing this code).

Long-story short...I did some research and found that other chrysler vehicles were notorious for throwing this code; as the solder joints on the cluster circuit board will crack and cause a bad connection.

Before I rip this thing apart and check the solder joints, potentially ruining a 300-dollar gauge cluster, is there anything else that could be causing this error code? My jeep starts and runs just fine. Sometimes it wont unless I hit the cluster while starting it up...but it shifts and runs great.

Does anyone have any advice or words of wisdom that could help me out? Thanks guys

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post #2 of 4 Old 07-19-2010, 07:36 PM
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I'd check all of your grounds first before tearing into that thing.

1990 YJ
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post #3 of 4 Old 07-19-2010, 07:50 PM
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post #4 of 4 Old 07-19-2010, 09:21 PM Thread Starter
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Hey, thanks nick. I'm going to give jerry's idea a try and see how flattening the pins works.
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p1698 , gauge cluster , solder joints , lj , wrangler , TJ

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