ABS Module

Tiny
JIMBO66
  • MEMBER
  • 2003 GMC SONOMA
  • 4.1L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 169,000 MILES
Is there video on how to replace a abs module on my vehicle listed above?
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Friday, February 3rd, 2017 AT 8:11 PM

7 Replies

Tiny
STEVE W.
  • EXPERT
What is the problem that makes the ABS module suspect? Code(s) There is a common problem with them that is not the module but a bad ground.
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Friday, February 3rd, 2017 AT 9:23 PM
Tiny
JIMBO66
  • MEMBER
The ABS light and brake light both come on. It does not come on automatically when I crank my truck, but when I am driving it it does and does not go off.
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Saturday, February 4th, 2017 AT 3:24 AM
Tiny
STEVE W.
  • EXPERT
The most common reason for that is a bad wheel speed sensor. You can use a good scan tool that can read ABS codes to see which one is causing the problem. If it was a failed ABS module the lights would come on as soon as you start the truck.
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Saturday, February 4th, 2017 AT 8:38 AM
Tiny
JIMBO66
  • MEMBER
But it also comes on while the truck is setting still and running after it has been cranked.
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Saturday, February 4th, 2017 AT 10:06 AM
Tiny
STEVE W.
  • EXPERT
Still more likely to be a sensor. A bad or broken wire will turn on the light as soon as the system runs a self test, which it does every time the key is turned on. That is why I suggest scanning it first. Nothing like replacing the ABS unit, then needing a scan tool to cycle it to bleed the system. Fighting to bleed the brakes and then still having a light because of a broken wire. With a scan and knowing the codes you do not just end up chasing the problem and spending time and money on unneeded parts.
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Saturday, February 4th, 2017 AT 11:27 AM
Tiny
JIMBO66
  • MEMBER
How do you scan it and how do I get a tool to do that with?
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Saturday, February 4th, 2017 AT 12:18 PM
Tiny
STEVE W.
  • EXPERT
You need a scan tool that can read ABS codes. Most of the parts stores will only scan for engine/power-train codes. My suggestion is to buy an entry level tool and use it. Having it yourself means that you can also help friends/neighbors or even family as well. Plus it would allow you to actually see what the codes are and possibly some of the live data to make servicing a vehicle easier.

These are just some examples of tools that can read OBDII/CAN/ABS and more.

Innova 3150e
Cen-Tech - #60794
Craftsman #568590
Actron CP9580A
Actron CP9690
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Sunday, February 5th, 2017 AT 1:18 PM

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