ABS, Traction Control and Stability Control Errors
Thread Starter
Advanced
Joined: Apr 2013
Posts: 67
Likes: 1
From: San Diego CA
ABS, Traction Control and Stability Control Errors
Please help,
I pulled my codes and got the following:
28-TCS C1217 H
28-TCS C1221 H
28-TCS C1222 H
28-TCS C1243 H
60-IPC B1527 H
99-HVAC B0367 H
AO-LDCM B2284 H
AO-LDCM U1255 H
AO-LDCM U1064 H
A1-RDCM B2283 H
A1-RDCM B2285 H
A1-RDCM U1255 H
A1-RDCM U1064 H
A1-RDCM U1016 H
A1-RDCM U1096 H
A6-SCM U1160 H
A6-SCM U1064 H
BO-RFA U1096 H
BO-RFA U1064 H
BO-RFA U1016 H
I am resetting the DIC and going to drive home and pull new codes again. Any preliminary prognosis Doctor?
I pulled my codes and got the following:
28-TCS C1217 H
28-TCS C1221 H
28-TCS C1222 H
28-TCS C1243 H
60-IPC B1527 H
99-HVAC B0367 H
AO-LDCM B2284 H
AO-LDCM U1255 H
AO-LDCM U1064 H
A1-RDCM B2283 H
A1-RDCM B2285 H
A1-RDCM U1255 H
A1-RDCM U1064 H
A1-RDCM U1016 H
A1-RDCM U1096 H
A6-SCM U1160 H
A6-SCM U1064 H
BO-RFA U1096 H
BO-RFA U1064 H
BO-RFA U1016 H
I am resetting the DIC and going to drive home and pull new codes again. Any preliminary prognosis Doctor?
Burning Brakes
Joined: Feb 2012
Posts: 901
Likes: 2
From: Palm City Fl
Not that I know squat about it, because I really don't. But it struck me that all the codes seem to be history codes and none that are current. So, hopefully, as stated above, once you clear them they will stay cleared. Good luck, these darn electronics can be a real PITA at times.
Burning Brakes
Joined: Feb 2012
Posts: 901
Likes: 2
From: Palm City Fl
MOST codes will be H or History codes if you pull them with the engine off. That's because most codes pertain to "operating" systems which are OFF when the engine is not running. There are a few exceptions, column lock is one that comes to mind, it runs BEFORE you start the car so those codes can show as C when the engine is off.
If you want to see codes when they are C or Current, then you need to pull them when the car has been driven and BEFORE you turn off the ignition.
H codes should NOT be ignored. They are an audit trail of events that have happened on the car and can be very helpful in identifying problems that occurred in the perhaps recent past. Clearing them and then driving the car to see what come back is a part of that process. Those that keep coming back deserve attention whether they are H or C.
If you want to see codes when they are C or Current, then you need to pull them when the car has been driven and BEFORE you turn off the ignition.
H codes should NOT be ignored. They are an audit trail of events that have happened on the car and can be very helpful in identifying problems that occurred in the perhaps recent past. Clearing them and then driving the car to see what come back is a part of that process. Those that keep coming back deserve attention whether they are H or C.
I did not however realize that most codes only came up as current if the car was running. Guess I never thought about it either. Thanks for the info 
I learn something, usually many things, every time I log in here. This forum is the most used tool I own. 
Thread Starter
Advanced
Joined: Apr 2013
Posts: 67
Likes: 1
From: San Diego CA
Ok, checked the #52 fuse and it was blown
Replaced fuse and everything working!
Then drove to Laguna Beach and back and got the following codes:
A6-SCM U1064 H
BO-RFA U1096 H
BO-RFA U1064 H
BO-RFA U1016H
Replaced fuse and everything working!
Then drove to Laguna Beach and back and got the following codes:
A6-SCM U1064 H
BO-RFA U1096 H
BO-RFA U1064 H
BO-RFA U1016H
Thread Starter
Advanced
Joined: Apr 2013
Posts: 67
Likes: 1
From: San Diego CA
First thing that comes to mind with the LDCM and RDCM codes as well as all the Uxxxx codes is a battery related issue. If you have recently changed/disconnected-reconnected the battery then those codes can be expected and should not return when you clear them and drive the car.
The TCS codes could be the result of a low/bad battery or loose or corroded battery connections or they MIGHT be for real.
If they are for real, they will return after you have driven the car.
If they DO return then post back here. The C1221 and C1222 codes are front wheel speed sensor issues which are usually wiring related. The C1217 and C1243 are BPMV relayed (pump motor stalled) and there are some things that can be done/tried to alleviate that issue.
Post back your results after clearing and then driving the car and pulling the codes BEFORE you turn off the ignition.
The TCS codes could be the result of a low/bad battery or loose or corroded battery connections or they MIGHT be for real.
If they are for real, they will return after you have driven the car.
If they DO return then post back here. The C1221 and C1222 codes are front wheel speed sensor issues which are usually wiring related. The C1217 and C1243 are BPMV relayed (pump motor stalled) and there are some things that can be done/tried to alleviate that issue.
Post back your results after clearing and then driving the car and pulling the codes BEFORE you turn off the ignition.
Replaced fuse and everything working!
Then drove to Laguna Beach and back and got the following codes:
A6-SCM U1064 H
BO-RFA U1096 H
BO-RFA U1064 H
BO-RFA U1016H
Cruising
Joined: Apr 2020
Posts: 12
Likes: 0
From: North Carolina
Brakes locking up
I have a 01 Corvette z06 and having issues with the brakes wanting to lock up. This issue began to occur after replacing my ebcm which had an internal code that couldn’t be repaired. When I get up to about 10 mph it begins to occur and the traction control symbol comes on in the dash. I ended up unplugging the ebcm connector and was able to drive it without any issues other than the abs and traction control symbols appearing on the dash. Has anyone had this issue before or any idea as to what might be going on.
Tech Contributor
Joined: Oct 1999
Posts: 41,032
Likes: 9,789
From: Charlotte, NC (formerly Endicott, NY)
I have a 01 Corvette z06 and having issues with the brakes wanting to lock up. This issue began to occur after replacing my ebcm which had an internal code that couldn’t be repaired. When I get up to about 10 mph it begins to occur and the traction control symbol comes on in the dash. I ended up unplugging the ebcm connector and was able to drive it without any issues other than the abs and traction control symbols appearing on the dash. Has anyone had this issue before or any idea as to what might be going on.
If you turn off Traction Control does the error go away? What are your front and rear tire sizes? However, it helps to have codes. Can't do a thing without codes. Anytime you get a message like that on the DIC there are codes that can be displayed. Use the C5's On Board Diagnostic System to display relevant codes on the DIC.
Bill
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Cruising
Joined: Apr 2020
Posts: 12
Likes: 0
From: North Carolina
If you turn off Traction Control does the error go away? What are your front and rear tire sizes? However, it helps to have codes. Can't do a thing without codes. Anytime you get a message like that on the DIC there are codes that can be displayed. Use the C5's On Board Diagnostic System to display relevant codes on the DIC.
Bill
Bill