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~ Lots of U and C codes! Need direction ~

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Old May 12, 2010 | 12:42 PM
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Default ~ Lots of U and C codes! Need direction ~

[Brake] C0896 - Device Voltage Range/Performance (History)
[Brake] C0550 - ECU Malfunction (Current)
[Brake] U1000 - Class 2 Communication Malfunction (Current)
[Restraints] U1000 - Class 2 Communication Malfunction (History) (Immature)
[Restraints] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
[Restraints] U1040 - Loss of Class 2 Communications with ABS (History) (Immature)
[HUD] U1040 - Loss of Class 2 Communications with ABS (History) (Immature)
[HUD] U1000 - Class 2 Communication Malfunction (History) (Immature)

These were pulled with HPT (thanks Tom!)

I do have other issues as well:
https://ls1tech.com/forums/general-m...abs-brake.html
https://ls1tech.com/forums/general-m...lant-help.html

Sorry if there is something obvious here, but Im completely a noob to this stuff. TIA

Last edited by nimrod.sixty9; May 12, 2010 at 02:55 PM.
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Old May 13, 2010 | 09:35 AM
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Which one is the EBCM? 1 or 2 OR 1 and 2?

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Old May 13, 2010 | 11:44 AM
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The EBCM is 2, but you have to buy 1 and 2 together I believe. Its really expensive, I think it is around 800 if not more.
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Old May 13, 2010 | 12:31 PM
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I still need to check connections, but Im guessing it is toast. Ill most likely eBay it like everything else LOL. Im hopeing to avoid pulling the whole thing as Id have to bleed the system with a tech 2.. correct?
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Old May 13, 2010 | 12:32 PM
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If you're chasing ABS INOP/LOW TRAC/ASR OFF problems it could be your wheel sensors, like we talked about in the other thread...
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Old May 13, 2010 | 01:30 PM
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Wouldnt I have a code for the wheel sensor if that was the case?
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Old May 14, 2010 | 09:02 AM
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Ttt :d
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Old May 17, 2010 | 12:01 AM
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I have never used a Tech 2 to bleed my brakes. Just a thought, you could have a mess up exctier ring. I dont see that happening but who knows
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Old May 17, 2010 | 04:35 AM
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Alt was replaced today. Couldn't wait any longer, it completely died out.

Fixed all the flickering light issues and its charging great.

But now my service vehicle light came on (along with all the other lights). It didnt come on immediately after the install but it did happen today... Wth is that about?
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Old Jun 20, 2010 | 06:18 PM
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Looking at replacing my ABS unit soon. How would I go about bleeding?

I do have a mityvac...
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