1st cell, 550 miles, lost communication with icm? U0155 - Mazda3 Forums : The #1 Mazda 3 Forum
 
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post #1 of 8 (permalink) Old 05-11-2008, 03:13 PM Thread Starter
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1st cell, 550 miles, lost communication with icm? U0155

Today when I got into my car to run up to the store I noticed a cel. The code is u0155, lost communication with instrument controle module? I drove maybe 2 miles and reset it with my dashhawk as it didnt seem too serious. Anyone else have any experiance with this cell? I figured I wouldnt bother with the silly dealership unless it comes back.
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post #2 of 8 (permalink) Old 05-11-2008, 05:36 PM
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Re: 1st cell, 550 miles, lost communication with icm? U0155

Hmm
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post #3 of 8 (permalink) Old 05-11-2008, 06:46 PM
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Re: 1st cell, 550 miles, lost communication with icm? U0155

I had one @ 30 miles. Bad MAF. Replaced and done, no more CEL's.
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post #4 of 8 (permalink) Old 05-11-2008, 08:11 PM
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Re: 1st cell, 550 miles, lost communication with icm? U0155

i bet you have a loose connector behind the dash.

the SPEED is no more...
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post #5 of 8 (permalink) Old 05-14-2008, 10:04 PM Thread Starter
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Re: 1st cell, 550 miles, lost communication with icm? U0155

I dont understand how this would effect the maf? (sensor in airbox, yes?) I have reset the cel and it has been gone since I originally posted. AFR and everything else with the car are running dead on as far as I can tell. If it come son again i will go ahead and take it in. I did notice my dashhawk had fell of its mount and was facing the sun with a somewhat burnt in screen. Could this have anything to do with the cell? I have tried various things to see if the cell comes back on, and it just isnt showing up.
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post #6 of 8 (permalink) Old 08-26-2008, 09:07 PM
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Re: 1st cell, 550 miles, lost communication with icm? U0155

Today after doing the independent fog mod and replacing the in-cabin air filter, I reconnected the battery and threw a CEL. I drove it straight to autozone to get the CEL read and they told me "U1055" and they had no idea what it meant. I drove it on a few errands before coming home, and at the last stop before coming home I turned on the car and the CEL was gone. Mysterious...



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post #7 of 8 (permalink) Old 08-26-2008, 09:11 PM
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Re: 1st cell, 550 miles, lost communication with icm? U0155

hmmmm...after doing some research online, I think it gave me this CEL briefly because I started the car up for a few seconds without having hooked back up all the connectors to the fuse panel in the passenger footwell. Maybe it detected that for a second and then rechecked a few minutes later and fixed itself. ???


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post #8 of 8 (permalink) Old 08-26-2008, 11:50 PM
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Re: 1st cell, 550 miles, lost communication with icm? U0155

[quote author=cmbadass link=topic=111486.msg2304710#msg2304710 date=1210546012]
I had one @ 30 miles. Bad MAF. Replaced and done, no more CEL's.
[/quote]

Had the same problem, at 5,000 miles. Took the dealership three tries to figure it out. I hate dealerships, they are a PITA!!!

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