Help with TC/ABS?
Thread Starter
Heel & Toe
Joined: Apr 2005
Posts: 16
Likes: 1
Help with TC/ABS?
Hi Guys. I need some help diagnosing an issue. I have searched the forum for days and could not find a thread with these sequence of codes. My car intermittently shuts down the ABS and TC. I checked the codes and they are :
C1221 LF Wheel Speed Sensor Input Signal is 0
C1222 RF Wheel Speed Sensor Input Signal is 0
C1232 LF Wheel Speed Circuit Open or Shorted
C1255 EBTCM Internal Malfunction
I also checked the voltage on the LF wheel sensor and it seemed to be working properly. I also checked the connections and they all seem fine. I know the C1214 code means the EBCM is bad but I don’t have that one. Any help from those in the know would be much appreciated.
C1221 LF Wheel Speed Sensor Input Signal is 0
C1222 RF Wheel Speed Sensor Input Signal is 0
C1232 LF Wheel Speed Circuit Open or Shorted
C1255 EBTCM Internal Malfunction
I also checked the voltage on the LF wheel sensor and it seemed to be working properly. I also checked the connections and they all seem fine. I know the C1214 code means the EBCM is bad but I don’t have that one. Any help from those in the know would be much appreciated.
Thread Starter
Heel & Toe
Joined: Apr 2005
Posts: 16
Likes: 1
I am off to check the grounds. Thank you 8vette7!!
Start by checking the condition of the battery and all the grounds.
The C1255 may be the kiss of death for the EBCM or I have seen it also caused by a bad or weak battery or loose or corroded battery connections or poor grounds.
Here is some info on grounds that will help find the grounds on the C5. Insure that they are all clean and tight:
http://forums.corvetteforum.com/c5-t...locations.html
http://forums.corvetteforum.com/c5-t...tion-long.html Post #1
After you eliminate any battery issues and ground issues, clear all the codes and take the car for a ride. If the codes are now gone your all set.
If the same codes (C1255 specifically) come back you are going to need a new EBCM.
The C1255 may be the kiss of death for the EBCM or I have seen it also caused by a bad or weak battery or loose or corroded battery connections or poor grounds.
Here is some info on grounds that will help find the grounds on the C5. Insure that they are all clean and tight:
http://forums.corvetteforum.com/c5-t...locations.html
http://forums.corvetteforum.com/c5-t...tion-long.html Post #1
After you eliminate any battery issues and ground issues, clear all the codes and take the car for a ride. If the codes are now gone your all set.
If the same codes (C1255 specifically) come back you are going to need a new EBCM.
