ABS light and traction control lights turn on intermittently

2012 RAM 1500
101,500 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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STEVE L.
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Replaced the wheel speed sensor twice, replaced the wheel hub assembly twice, replaced the computer module and had the wiring repaired and the lights come on and off intermittently. I am at a loss. Help!
Oct 16, 2021 at 5:46 AM
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ASEMASTER6371
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Good morning,

What was the original code that was sent?

https://www.2carpros.com/articles/abs-warning-light-on-easy-repair-guide

Which wiring was repaired? The wires are so small for this system that repairing the wiring is extremely difficult.

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

I attached a wiring diagram for you to view the system. I also attached a guide for the testing. What you need is a scan tool that can read the wheel speed of all the wheels to be sure that all the wheels are sending the correct signals.

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

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Roy


Oct 16, 2021 at 7:23 AM
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STEVE L.
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The original code said that there was an intermittent problem with right front sensor. Not sure of the actual code itself. This is what I was told. I had two repair shops and a Ram dealer work on it, and no one could repair it. Can I just replace the wiring?
Oct 16, 2021 at 7:41 AM
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ASEMASTER6371
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Can you have the code checked again at a parts store as that will give me a clue where the issue is located?

It is a free service to read the codes.

Roy
Oct 18, 2021 at 1:02 PM
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STEVE L.
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Here's the info I got from a scanner:
Dodge ABS
C101C (1/3) Stored
Right front wheel speed sensor signal erratic performance.
Oct 30, 2021 at 10:50 AM
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ASEMASTER6371
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Thank you.

This indicates a wheel speed sensor issue. I attached the possibilities for you, but the most common problem is the sensor itself.

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

https://www.2carpros.com/articles/how-to-replace-an-abs-wheel-speed-sensor

Roy
Nov 1, 2021 at 4:39 AM
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STEVE L.
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I had the wheel speed sensor replaced twice. Would you agree that it may be wiring issue? If so, can the wiring be replaced? Thank you in advance for your continued support.
Nov 1, 2021 at 5:00 AM
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ASEMASTER6371
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It is possible. You need someone with a scan tool that can read the voltage from the sensor while the truck is moving. That will confirm if it is the wiring.

Yes, the harness can be replaced.

Roy
Nov 2, 2021 at 3:52 AM