Slip and VDC light always on?

Tiny
DAVID NAPPI
  • MEMBER
  • 2011 NISSAN ARMADA
  • 0.5L
  • 6 CYL
  • AUTOMATIC
  • 198,000 MILES
My slip light and vehicle dynamic control light are always on. How to fix?
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Sunday, January 22nd, 2023 AT 9:57 AM

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Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 107,591 POSTS
Hi David,

The most common cause of these lights being on is the result of a faulty wheel speed sensor. Did the lights turn on at the same time or is the ABS light on?

We have two ways we can go to diagnose the issue. First, you can check each wheel speed sensor using a voltmeter or multimeter.

Here is a link that explains how that is done:

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

If you are unable to do that, here is where I would start. We need to scan the can-bus. CAN stands for controller area network.

Basically, the different modules are tied together via a few wires. This type of scan will retrieve codes regardless of the module storing them. A traditional scan tool will likely only retrieve basic powertrain codes only. This type of scan will retrieve them from all the different modules.

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

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

I am recommending this because without a direction, this will become an expensive guessing game. Hopefully, this will point us in the right direction. On the other hand, if you are comfortable checking the wheel speed sensors, that can be done first as well.

Let me know if this helps or if you have other questions. Also, let me know what you find.

Take care,

Joe
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Sunday, January 22nd, 2023 AT 6:32 PM

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