C5 Codes help
Thread Starter
Instructor
Joined: Oct 2006
Posts: 240
Likes: 0
From: Richmond VA
C5 Codes help
I need your expertise on how to figure out why my car is throwing these codes. The issue I've been having is everytime I turn the car on my Traction Control light and ABS light are lit and are on constantly. If I press the Traction Control button it doesn't do anything. These are the codes that I pulled today:
28-TCS (5 codes)
C1232HC - LF Wheel Speed Circuit Open or Shorted
C1233HC - RF Wheel Speed Circuit Open or Shorted
C1234HC - LR Wheel Speed Circuit Open or Shorted
C1235HC - RR Wheel Speed Circuit Open or Shorted
C1255HC - EBTCM Internal Malfunction CEBCM Internal Malfunction
40-BCM (1 code)
B2597H Traction Control System Switch Circuit
Any ideas on how to fix these issues?
Thanks
28-TCS (5 codes)
C1232HC - LF Wheel Speed Circuit Open or Shorted
C1233HC - RF Wheel Speed Circuit Open or Shorted
C1234HC - LR Wheel Speed Circuit Open or Shorted
C1235HC - RR Wheel Speed Circuit Open or Shorted
C1255HC - EBTCM Internal Malfunction CEBCM Internal Malfunction
40-BCM (1 code)
B2597H Traction Control System Switch Circuit
Any ideas on how to fix these issues?
Thanks
Thread Starter
Instructor
Joined: Oct 2006
Posts: 240
Likes: 0
From: Richmond VA
Damn it... Thats not what I wanted to hear. Is there any other way to test the ebcm before I spend the money for a new one?
Also, is it safe to drive the car as is or should I just park it until the ebcm has been replaced?
Thanks
Also, is it safe to drive the car as is or should I just park it until the ebcm has been replaced?
Thanks
Thread Starter
Instructor
Joined: Oct 2006
Posts: 240
Likes: 0
From: Richmond VA
Great...thanks so much for the ground point and module connection tips. I'll look into that first. I was just worried that the car might lock up somehow due to the faulty ebcm. It sucks that gm is not producing this part anymore for 00 and older vehicles.Traction control is not an issue... I always drive without it anyway.
Thanks for your help
Thanks for your help
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
Just for the hell of it,,, find all the fuses for the EBTCM and read the test points on top of the fuses to chassis ground.
Make sure your getting full battery voltage on all the fuses. Especially on the ignition switch powered fuses:
If any of them have low voltage it can have ill effects on your Module.
I would also read the EBTCM pump ground to chassis ground and make sure that it is making a good connection:
BC
Make sure your getting full battery voltage on all the fuses. Especially on the ignition switch powered fuses:
If any of them have low voltage it can have ill effects on your Module.
I would also read the EBTCM pump ground to chassis ground and make sure that it is making a good connection:
BC
Last edited by Bill Curlee; Sep 24, 2012 at 03:23 PM.
