ABS, traction control, ESB lights are on

Tiny
GLEN.QUAG1
  • MEMBER
  • 2007 JEEP CHEROKEE
  • 3.7L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 345,000 MILES
Replaced the ABS module and lights on they don’t go out. ABS, traction control, ESB.
Friday, June 25th, 2021 AT 1:41 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,724 POSTS
Hi,

Was the ABS module tested bad? I ask because often times a faulty wheel speed sensor can cause the lights to come on. I've even seen low brake fluid cause it.

What I suggest is to have the can bus scanned. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. If there is a code identifying a problem within the ABS module, it will show.

Here is a video that shows how it's done:

https://youtu.be/InIlnsjOVFA

If you already have done that, let me know what codes were found. If there are no codes, check the wheel speed sensors. Here is a link showing how that done:

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

Let me know if there are codes or anything other you can think of that will help me diagnose the issue.

Take care,

Joe

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Friday, June 25th, 2021 AT 9:38 PM

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