Diagnostic trouble code C0110, ABS light turned on?

Hello MICHAEL POWELL,

This code is set when the Electronic Brake Control Module or EBCM for short detects and open in the pump motor, a shorted pump motor, or a seized pump motor or ABS pump. When this happens the EBCM will disable the ABS and turn the indicator light on.

Sometimes it can also be caused by a bad Anti-Lock Brake Traction Control Module.

Is the red brake light on? Like if you had the E-Brake engaged? Any ABS activation, pulsing in pedal, at slow speeds on dry pavement?

First thing with any electrical diagnosis is to check fuses, power and grounds.

I have added a wiring diagram for you. I have circled the items I need you to look at first.

1) Check 60 AMP fuse in under hood fuse block, fuse number 33. This fuse should be big with a clear top.

I am adding a diagram of your under-hood fuse block with a legend. I have circled the fuse for the ABS.

I would also check all other fuses to see if any other circuits are out.
Here is a good article to explain the best way to do this:
https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here is an article on best practices when searching for electrical issues that I think will help as well:
https://www.2carpros.com/articles/how-to-check-wiring

2) Check for power at ABS Pump. I have added a connector end view for you. You can use a test light for this. Just connect the lead to ground and use the probe end to check for the presence of power. This test should be performed with the connector disconnected.

3) The ground for this is on the outside frame rail near the body mount just behind the front driver's side tire. I will add a picture for you. This picture contains 2 grounds, but this is about the location it should be. If there is more than one just cleans them all. I recommend cleaning this ground. Use some penetrating oil for the bolt and remove the bolt slowly and carefully. Then clean the frame to bare metal and clean connector as well. Re-attach ground, prime with Etching primer and paint to prevent further corrosion. Do not use any Di-Electric Grease as this grease prevents electricity from flowing.

Here is a general article about common ABS module failure symptoms:
https://www.2carpros.com/articles/7-common-symptoms-of-a-bad-automotive-abs-module

I would disconnect battery negative, so you don't get a voltage spike when reattaching ground. A voltage spike could fry the module.

Try these few things and let me know what you find, and we can go from there.

Thank you,
Brendon

Hello MICHAEL POWELL,

Okay, good. Let's look at a couple other things.

Disconnect the 2-wire pump connector and check for resistance across the pump motor, what do you get? Spec on the pump motor is between 0.3 ohms and 1.0 ohms.

I would also back probe the module connector on terminal A1, it's a brown wire on the module connector. You should have 12v with the key on. I will add a connector end view for you.

Any signs of connect damage, corrosion? The harness should run on the inside of the frame rail on the driver's side. Take a look and see if there are any issues especially right around where the fuel line runs over the harness.

Also, if you have freeze frame data for the code could you please take a photo of it and upload it?

Let me know what you find.

Thank you,
Brendon