Quote:
Originally Posted by reborn55
1999 Silverado-2wd-5.3-100,000 miles. While driving to work this morning abs and parking light came on--codes C0222-R/F wheel signal missing,C0226-L/F wheel signal missing and C0265-EBCM. Am I facing multiple problems or just one. don't have all my Bosch information uploaded for Mastertech VCI yet. Seems to be an intermittient proble. Comes on after a couple of days---turn ignition off restart and is good for a couple of more days. Cleaned terminals at EBCM and redid ground. Still happens
Thanks
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since you have ABS/brake light on and no braking issues this is a problem I have not seen before. with no sensor output the ABS shutdown , there fore no ABS will activate. intermittent left and right sensor signal lost at the same time my guess is the ebcm is no good. if you have the ability to monitor sensor output [s] when operating the vehicle this would be a good test . or you can do this manually at the wheel sensor output hub connectors. you must have over 300 MV AC. normal would be 500MV/.5V AC. this is with the hub being rotated by hand at a good rate of speed.
the ground under the driver side frame rail being cleaned is a good start . make sure the ABS fuse sets in the holder securely.