Error Code U1110 and U1120 - Chrysler Forum - Chrysler Enthusiast Forums

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Old 02-29-2012, 09:46 AM
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Default Error Code U1110 and U1120

This morning, started my Aspen and check engine light, abs light, brake light, and other lights on speedometer panel all came on. Tried restarting to see if they would reset. No luck. Scanner came up with error U1110 and U1120. Vehicle drives but speedometer does not work. Nor does the fan for defrost, panel or floor vents. Which makes it difficult because of the freezing rain and snow we got last night. Can anyone help me on this one? Thanks.
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Old 02-29-2012, 07:56 PM
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U1110 means the PCM didn't receive a vehicle speed signal from the Anti-lock brake Module over the CAN C bus. Are you sure this wasn't accompanied by U0121? If not, you need a new PCM. If you have the U0121, then you may just need an ABS module.

U1120 is a lost wheel distance message. It has the same possible causes as the above. Both can also be caused by a short in the CAN C bus as well. You need a mechanic for this one, unless you have the proper scan tool to run a Powertrain Verification Test.

Chrysler mechanics, feel free to chime in on this one.
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Last edited by 15951a\; 02-29-2012 at 07:59 PM.
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Old 02-29-2012, 10:34 PM
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Default More info

I wonder if related. I just had the tire shop rotate my tires. Also I had to fix a tire that had a bolt in it. Second, I drove home last night in freezing rain and the car sat out over night and was iced over. Not sure if any of this is related. Maybe related to the ABS problem. Would this issue cause my blower not to work as well???
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Old 02-29-2012, 10:37 PM
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Default One more point

About a month ago, I had the transmission rebuilt. The transmission filter failed and split in half. Ugh. Vehicle has 103k miles on it. Too early to be having these issues.
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  #5  
Old 03-04-2012, 01:18 PM
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Were you able to resolve the problem? Just interested in what the verdict was.
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1110, 2008, abs, caliper, chrysler, code, distance, dodge, engine, error, message, sebring, trouble, u1110, u1110c, u1120, wheel

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