Service Traction Control, Service Stabil Trak, codes C1100-00 and C0045-5A

KJBURNS128

MEMBER
2015 CHEVROLET TRAVERSE
3.6L
6 CYL
4WD
AUTOMATIC
131,000 MILES

Message "Service Traction Control", "Service Stabil Trak" on the Dash with the ABS and traction control lights on. After the lights came on, the transmission was shifting hard and shuddering, especially for 3rd and 5th gear.

I ran the ABS codes and got C1100-00 and C0045-5A.

Is there a connection between the Traction Control and Stabil Trak issue and the transmission issues? The transmission shifted fine until the lights and warnings came on yesterday.

As for repairs, most things online are pointing to the Electronic Brake Control Module, does that seem right?

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

The C0045 is specific to a faulty left rear wheel speed sensor. This would set the lights on that you indicated, so that is where I would start checking. Yes, it could be related to the EBCM, but let's start with the cheaper possibilities. Also, it could be affecting the transmission as well.

What I need you to do is check that sensor to see if it is working. All you will need is a voltmeter or a multimeter. Follow the directions in this link:

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

If the sensor is good, confirm the connector isn't damaged, corroded, or loose.

If everything checks good, then we need to check the EBCM. I attached the diagnostics below for you. Let me know if you are comfortable performing them or if you have other questions.

Here is a link you may find helpful.

https://www.2carpros.com/articles/how-to-check-wiring

Take care,

Joe

See pics below.

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