ABS Module

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.

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.

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.

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