ABS and Traction lights stay on

Tiny
RONALD PAUL
  • MEMBER
  • 2007 DODGE DURANGO
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 114,300 MILES
ABS and Traction light.
Friday, January 28th, 2022 AT 3:53 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

First, make sure the brake fluid is full. If it's low, it can cause this to happen.

The most common cause of these lights being on is a faulty wheel speed sensor. We have two things that can be done to determine where the issue is coming from. The first is to use a scan tool that can read the can-bus system. CAN stands for controller area network. Basically, all the modules are tied together via a few wires. This type of scan tool can retrieve codes regardless of the module storing them.

Here is a link showing how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Another thing you can do is check each of the wheel speed sensors for a signal. All this requires is a voltmeter or multimeter.

Here is a link that explains how it's done:

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

Your vehicle has a sensor at each wheel. I attached two pics showing their locations below.
Pic 1 shows the front and pic 2 is the rear.

Let me know if this helps or if you have other questions.

Take care,

Joe
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Friday, January 28th, 2022 AT 8:33 PM

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