Traction control system issues
Thread Starter
Melting Slicks
Joined: Mar 2008
Posts: 2,442
Likes: 339
From: SC
Traction control system issues
Lately I've been getting the Service traction control/service active handling message. Usually when making the hard turn out of my garage into my driveway. I pulled the codes and the were numerous:
C1225H, c1261H, c1262H, c1263H, c1264H, c1265H, c1266H, c1267H, c1268H, c1273H, and c1274H. Is this telling me my TC system is on it's way out?
If I restart the car it resets and usually doesn't return, but it's been happening more frequently lately.
Thanks
C1225H, c1261H, c1262H, c1263H, c1264H, c1265H, c1266H, c1267H, c1268H, c1273H, and c1274H. Is this telling me my TC system is on it's way out?
If I restart the car it resets and usually doesn't return, but it's been happening more frequently lately.
Thanks
Thread Starter
Melting Slicks
Joined: Mar 2008
Posts: 2,442
Likes: 339
From: SC
I would start with inspecting and cleaning grounds related to the EBTCM and hope they are the cause and not a failing EBTCM. Besides the ground wire on the EBTCM plug there are others that may need attention.
Here are a couple of links about grounds that should be helpful:
http://forums.corvetteforum.com/c5-t...locations.html
http://forums.corvetteforum.com/c5-t...tion-long.html Post #1
If grounds don't correct the problem your likely looking at a new EBTCM since C1214 is NOT one of your codes and that's the only one that is repairable.
Here are a couple of links about grounds that should be helpful:
http://forums.corvetteforum.com/c5-t...locations.html
http://forums.corvetteforum.com/c5-t...tion-long.html Post #1
If grounds don't correct the problem your likely looking at a new EBTCM since C1214 is NOT one of your codes and that's the only one that is repairable.
Great info, Thanks. Now the next question. How do you get the damn connectors apart?
Thread Starter
Melting Slicks
Joined: Mar 2008
Posts: 2,442
Likes: 339
From: SC
OK so I cleand the grounds and then today, turning hard right out of driveway, the service abs/traction control comes on again, always seems when making a turn. I pulled the codes before shutting it off and got 1225 h c. (RF Excessive Wheel Speed Variation). Can some one chime in on what that means?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
OK so I cleand the grounds and then today, turning hard right out of driveway, the service abs/traction control comes on again, always seems when making a turn. I pulled the codes before shutting it off and got 1225 h c. (RF Excessive Wheel Speed Variation). Can some one chime in on what that means?
If you have WSS voltage DTCs,, Most likely, you have damaged/defective /deformed female pins in the female connectors for the front wheel sensor wiring circuit remove the front WSS JUMPER HARNESS and inspect the female pins in the harness jumper and on the connector on the K Member frame wher the jumper plugs into.
If they are bent , deformed, damaged, you can bend them back and recover fron the issue!
SOMETIMES,,,,,,,,,,,,,,,,,,,,,,,,,,,,, I only seen it two times, the wheel hub sensor comes loose and gets water in it which requires Wheel Hub Replacement.
BC
Thread Starter
Melting Slicks
Joined: Mar 2008
Posts: 2,442
Likes: 339
From: SC
Each wheel has a wheel speed sensor built into the hub. If you jack the car up and remove a wheel you will see the wiring and connector that connects each sensor to the cars wiring system.
Code C1225 is actually for the left front sensor and NOT the right front sensor. Remove the left front wheel and inspect the wiring on either side of the connectors for damage and if there is none, separate the connector halves and check for corrosion and/or damaged pins that might prevent the signal from flowing. The sensors themselves almost NEVER go bad. It is usually the wiring or Pins that need attention.
Code C1225 is actually for the left front sensor and NOT the right front sensor. Remove the left front wheel and inspect the wiring on either side of the connectors for damage and if there is none, separate the connector halves and check for corrosion and/or damaged pins that might prevent the signal from flowing. The sensors themselves almost NEVER go bad. It is usually the wiring or Pins that need attention.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Thread Starter
Melting Slicks
Joined: Mar 2008
Posts: 2,442
Likes: 339
From: SC
Each wheel has a wheel speed sensor built into the hub. If you jack the car up and remove a wheel you will see the wiring and connector that connects each sensor to the cars wiring system.
Code C1225 is actually for the left front sensor and NOT the right front sensor. Remove the left front wheel and inspect the wiring on either side of the connectors for damage and if there is none, separate the connector halves and check for corrosion and/or damaged pins that might prevent the signal from flowing. The sensors themselves almost NEVER go bad. It is usually the wiring or Pins that need attention.
Code C1225 is actually for the left front sensor and NOT the right front sensor. Remove the left front wheel and inspect the wiring on either side of the connectors for damage and if there is none, separate the connector halves and check for corrosion and/or damaged pins that might prevent the signal from flowing. The sensors themselves almost NEVER go bad. It is usually the wiring or Pins that need attention.
Thanks to all.