ABS, Traction Control question? Help!
Thread Starter
Instructor
Joined: Jul 2013
Posts: 128
Likes: 0
From: Follansbee West Virginia
ABS, Traction Control question? Help!
I am new to the forum and have read a ton on the ABS/Traction Control light coming on in attempt to solve my own dilemma. My Z does it at 70 mph and keeps throwing the code that there is an issue with the left front wheel speed sensor. I had it looked at by a mechanic and he said everything looks fine and there is nothing wrong with the hub. The ECBM was sent to ABS fixer but still no cigar?
The original owner felt the Rims and tires could be the culprit. I have 20's on the back and 19's on the front. Could this be an issue as to why the the ABS and Traction control keep turning on? Is there something else that could be causing it that I am missing? Any help appreciated!
The original owner felt the Rims and tires could be the culprit. I have 20's on the back and 19's on the front. Could this be an issue as to why the the ABS and Traction control keep turning on? Is there something else that could be causing it that I am missing? Any help appreciated!
Burning Brakes
Joined: Jun 2008
Posts: 940
Likes: 81
From: Lake Villa IL
The tire sizes could be the problem. Measure the diameter of the front tires verses the rear. There should be a "1/2 to "1.5 difference in tire diameter for the system to work. The rim sizes won't matter. Of coarse the rear being the largest.
Thread Starter
Instructor
Joined: Jul 2013
Posts: 128
Likes: 0
From: Follansbee West Virginia
You need to pull all your codes and post them here. There are literally dozens of causes for the ABS Traction light coming on. Without codes it is merely a guess as to what is going on.
http://www.c5forum.com/ayc/dtcdic.php
OR
Include the H or C or HC that follow the 5 character codes.
You should also post the EXACT tire sizes taken off the sidewall that you are running. Just 19 and 20 doesn't help. If the overall diameter of the rear tire is not between 1/2 and 1 1/2" larger than the overall diameter of the front tire you can also cause the symptoms you are experiencing.
http://www.c5forum.com/ayc/dtcdic.php
OR
Include the H or C or HC that follow the 5 character codes.
You should also post the EXACT tire sizes taken off the sidewall that you are running. Just 19 and 20 doesn't help. If the overall diameter of the rear tire is not between 1/2 and 1 1/2" larger than the overall diameter of the front tire you can also cause the symptoms you are experiencing.
Tire and Rim Sizes:
There appears to be a 1/2 inch difference from front to rear.
Fronts: 275/30/19
Back: 305/25/20
There were two codes. Here ya go!
C1232 H
B2265H
Thread Starter
Instructor
Joined: Jul 2013
Posts: 128
Likes: 0
From: Follansbee West Virginia
Front tire diameter is 25.5 and rear tire diameter is 26.5. So the delta is 1" which is exactly what the OEM delta would be. Very unlikely the tire sizes have anything to do with the problem you are experiencing.
Code B2265 is a Right Door Control Module code and would have nothing to do with traction control.
Code C1232 is Traction Control code and is likely the cause of your problem.
C1232 Left Front Wheel Speed Circuit Open or Shorted.
Remove your LF wheel and examine the wiring to the wheel speed sensor for damage. Separate the wiring connector halves and examine the pins in each half of the connector for damage or corrosion. Repair as needed. Very unlikely that the problem is the wheel speed sensor itself as those almost never fail. Most common cause for this code is damaged wires or problems with the connector in the form of corrosion or damaged/bent pins.
Code B2265 is a Right Door Control Module code and would have nothing to do with traction control.
Code C1232 is Traction Control code and is likely the cause of your problem.
C1232 Left Front Wheel Speed Circuit Open or Shorted.
Remove your LF wheel and examine the wiring to the wheel speed sensor for damage. Separate the wiring connector halves and examine the pins in each half of the connector for damage or corrosion. Repair as needed. Very unlikely that the problem is the wheel speed sensor itself as those almost never fail. Most common cause for this code is damaged wires or problems with the connector in the form of corrosion or damaged/bent pins.
Thread Starter
Instructor
Joined: Jul 2013
Posts: 128
Likes: 0
From: Follansbee West Virginia
Front tire diameter is 25.5 and rear tire diameter is 26.5. So the delta is 1" which is exactly what the OEM delta would be. Very unlikely the tire sizes have anything to do with the problem you are experiencing.
Code B2265 is a Right Door Control Module code and would have nothing to do with traction control.
Code C1232 is Traction Control code and is likely the cause of your problem.
C1232 Left Front Wheel Speed Circuit Open or Shorted.
Remove your LF wheel and examine the wiring to the wheel speed sensor for damage. Separate the wiring connector halves and examine the pins in each half of the connector for damage or corrosion. Repair as needed. Very unlikely that the problem is the wheel speed sensor itself as those almost never fail. Most common cause for this code is damaged wires or problems with the connector in the form of corrosion or damaged/bent pins.
Code B2265 is a Right Door Control Module code and would have nothing to do with traction control.
Code C1232 is Traction Control code and is likely the cause of your problem.
C1232 Left Front Wheel Speed Circuit Open or Shorted.
Remove your LF wheel and examine the wiring to the wheel speed sensor for damage. Separate the wiring connector halves and examine the pins in each half of the connector for damage or corrosion. Repair as needed. Very unlikely that the problem is the wheel speed sensor itself as those almost never fail. Most common cause for this code is damaged wires or problems with the connector in the form of corrosion or damaged/bent pins.
