C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ABS Faults

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Old Feb 7, 2007 | 06:41 PM
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Default ABS Faults

I have a 1990 Vette that I am still getting an intermittent Service ABS fault. The codes are 25 and 26 which indicate that it's a left front sensor. I've removed both front sensors and cleaned them as well as the hub gears (which hasn't seemed to help). The pump motor comes on as normal, but I do get a pulsing sensation in the pedal once in awhile when I come to a gradual stop. The fault seems to be more frequent lately. I have a service manual that says you can test the sensors for resistance and if they check out ok then it could be the EBCM. Are there any experts that have seen this before?



Thanks for the help.



PS I did clear the code for my INF RES error that I have been getting. Got it on the first try.

Last edited by rsbloom; Feb 9, 2007 at 03:51 PM.
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Old Feb 7, 2007 | 07:52 PM
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Have you inspected the wiring from the wheel sensor back to the ECBM?

I was getting a right front fault and it was the wiring was melted near the exhaust.
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Old Feb 8, 2007 | 04:51 PM
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Not yet, but that is next and possibly seeing where they connect into the EBCM as well.
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