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#1
05-23-2014, 07:11 PM
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Multiple ABS Codes
My 2003 TrailBlazer LT (regular wheelbase) has the following codes:
- C0265 -C0281 -C0267 -C0237 The ABS light is NOT on! Every once in a while, if braking lightly, the ABS kicks in. That is the only symptom of any problems at all. My first thought is could this be a bad ground at the EBCM or does it look like my BCM is on it's way out? I am wrong all together it the problem is something else? Thanks in advance!
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"Save water, shower with a friend" 
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#2
05-23-2014, 07:40 PM
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Re: Multiple ABS Codes
Tough to diagnose this without a full road test scan with an abs function scanner, you can then look and compare wheel speed inputs especially from 10 mph down, this will usually pinpoint the suspect wheel speed sensor, high line scanners have a trouble tracer program for every code.
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#3
05-23-2014, 07:45 PM
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Re: Multiple ABS Codes
Quote:
P.S.... I see you are from Chestertown... I am not all that far away up here in Plattsburgh!
__________________
"Save water, shower with a friend"
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#4
05-23-2014, 10:06 PM
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Re: Multiple ABS Codes
Those 4 codes all represent 4 different problems.....
The symptom you are describing matches a TSB for slow speed ABS application due to rust buildup under a sensor causing an erratic signal....
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#5
05-24-2014, 08:42 AM
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Re: Multiple ABS Codes
Quote:
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#6
05-24-2014, 10:36 PM
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Re: Multiple ABS Codes
The C0265 is the EBCM relay circuit. The relay is internal to the EBCM. You can try cleaning the ground for the EBCM. It's on the frame under the drivers door area. There may be two there, clean them both. Clear the codes. If the code resets, the EBCM will need to be replaced.
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