ABS light question?
Thread Starter
Heel & Toe
Joined: Sep 2011
Posts: 24
Likes: 0
ABS light question?
My 97 is displaying abs light about half the time. Usually comes on after a good bump. I'm aware of the EBCM problems but all my codes relate to the RR wheel sensor. Pulling the following codes
C1224 H
C1228 H
C1235 H
Theses are the only codes
C1224 H
C1228 H
C1235 H
Theses are the only codes
Burning Brakes
Joined: Jun 2010
Posts: 1,014
Likes: 5
From: Rockwall TX
You might try looking at the rear wheel sensor, cleaning it, and making sure it has a good connection. My 99 did this on the front wheel, I did this, and have not seen any display probs for quite a while now.
Le Mans Master
Joined: Nov 2005
Posts: 6,993
Likes: 25
Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
Check the electrical connector at your wheel speed sensor at your right rear wheel...
C1224 RR Wheel Speed Sensor Input Signal is 0
C1228 RR Excessive Wheel Speed Variation
C1235 RR Wheel Speed Circuit Open or Shorted
C1224 RR Wheel Speed Sensor Input Signal is 0
C1228 RR Excessive Wheel Speed Variation
C1235 RR Wheel Speed Circuit Open or Shorted
Last edited by cdkcorvette7; Sep 23, 2011 at 11:15 AM. Reason: Fixed
Le Mans Master
Joined: Nov 2005
Posts: 6,993
Likes: 25
Tech Contributor
Joined: Oct 1999
Posts: 40,982
Likes: 9,735
From: Charlotte, NC (formerly Endicott, NY)
It could be the wheel speed sensor or it could be the EBCM. The first EBCM had a design issue that caused errors just like the one you are seeing. I flat spotted a number of tires when autocrossing with my 97 due to the ABS failing when going over bumps. It took close to two years to get the updated EBCM to the field and not many people had them installed since they didn't drive the cars enough to find the problem. If it is the EBCM one way to solve the problem is to mount a toggle switch on the center console that allows you to turn the EBCM power off and back on every time it fails. The EBCM will reset, do its self check and work fine until the next special bump.
Bill
Bill
Safety Car
Joined: Jan 2001
Posts: 4,382
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From: Boise ID
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Tech Contributor
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From: Oak Hill Virginia
Thread Starter
Heel & Toe
Joined: Sep 2011
Posts: 24
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Ok here is what I did.
The first thing I did was make sure battery was fully charged and it was,then I went thru and cleaned up four of the main grounding points.
http://forums.corvetteforum.com/c5-t...tion-long.html here is the link. Then I pulled the connector on the RR wheel sensor cleaned it and snapped it back on. It's been three days and no abs or tcs lights.
The first thing I did was make sure battery was fully charged and it was,then I went thru and cleaned up four of the main grounding points.
http://forums.corvetteforum.com/c5-t...tion-long.html here is the link. Then I pulled the connector on the RR wheel sensor cleaned it and snapped it back on. It's been three days and no abs or tcs lights.
Cruising
Joined: Feb 2013
Posts: 10
Likes: 0
Ok here is what I did.
The first thing I did was make sure battery was fully charged and it was,then I went thru and cleaned up four of the main grounding points.
http://forums.corvetteforum.com/c5-t...tion-long.html here is the link. Then I pulled the connector on the RR wheel sensor cleaned it and snapped it back on. It's been three days and no abs or tcs lights.
The first thing I did was make sure battery was fully charged and it was,then I went thru and cleaned up four of the main grounding points.
http://forums.corvetteforum.com/c5-t...tion-long.html here is the link. Then I pulled the connector on the RR wheel sensor cleaned it and snapped it back on. It's been three days and no abs or tcs lights.
