advice/help post
Thread Starter
1st Gear
Joined: Apr 2026
Posts: 1
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advice/help post
Hi I’m making a advice/help post
Vehicle: 1999 Corvette C5
Codes:
C1226 H
C1243 H
C1292 H
Symptoms:
- ABS light on
- Service Active Handling message
- Traction control issues
Mechanic diagnosis:
- Internal brake control module (EBCM) fault
- Recommended replace/rebuild EBCM (part discontinued)
Question:
- Best place to send EBCM for rebuild?
- Is rebuild reliable vs buying used?
- Anything else I should check before removing it?
A lot of websites I go to for repairs are super confusing and they list things that aren’t related to my codes or whatnot I’m not very mechanically inclined so I don’t wanna do the wrong thing and be *** out.
Vehicle: 1999 Corvette C5
Codes:
C1226 H
C1243 H
C1292 H
Symptoms:
- ABS light on
- Service Active Handling message
- Traction control issues
Mechanic diagnosis:
- Internal brake control module (EBCM) fault
- Recommended replace/rebuild EBCM (part discontinued)
Question:
- Best place to send EBCM for rebuild?
- Is rebuild reliable vs buying used?
- Anything else I should check before removing it?
A lot of websites I go to for repairs are super confusing and they list things that aren’t related to my codes or whatnot I’m not very mechanically inclined so I don’t wanna do the wrong thing and be *** out.
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,668
The 1997-2000 EBCM's are not repairable. IF the problem is actually the EBCM, your only choice is a salvage yard. Be prepared to shell out $1,500-$2,000. So, obviously, ensure the problem is actually the EBCM. The 1226 code is the RFSS. The 1243 code is not a good one. IIRC, and I may not, I think that code means the ABS pump motor has seized or stalled. The 1292 code is the fluid pressure sensor, which could mean the master cylinder and/or the EBCM are failing. Could also be the wiring. I see they are "H" (history) codes. Have you tried clearing them?
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,668
Must be a somewhat recent development. I know up to a few years ago they weren't repairable. At least, that's what forum members reported. From my understanding, more problems can be fixed on the '01-up EBCM's. I'm glad some progress has been made fixing the older units. Perhaps I should've simply said call ABS Fixer!
Instructor
Joined: Jun 2025
Posts: 137
Likes: 87
Must be a somewhat recent development. I know up to a few years ago they weren't repairable. At least, that's what forum members reported. From my understanding, more problems can be fixed on the '01-up EBCM's. I'm glad some progress has been made fixing the older units. Perhaps I should've simply said call ABS Fixer!
