May have the record for number of ABS codes

[jman11788]

So I did the trick on how to get abs codes by shorting the circuits...

The codes it pulled were 11,31,32,34,37,41,49.

Code 11 is Abs relay but I cannot figure out where it’s located.. unless it’s talking about the fuse in the engine bay?

Codes 31,32,34 are just speed sensors but I have no clue why it pulled 37,41, and 49?

All my tires are the same size. My battery voltage is good and my brake lights work (also don’t have the 3rd brake led light).

 

[BrianK14]

Don’t know if this has anything to do with your situation or not, but here’s my experience:
When I bought my truck, I knew it had ABS issues. Truck drove fine, but Pre-purchase inspection showed like 10 ABS codes. I suspected a bad ABS module, and used that to negotiate the price lower. Bought a module off a EBay, but no dice, didn’t fix my issues. Then realized that several wires at the ABS module harness were snipped. WTF? how could that be? Soldered them, and my ABS was working again. Most all the codes went away. However, it was working too good. ABS going off when it shouldn’t. Wouldn’t let the truck take off when turning right. Found that one of the wheel speed sensors was not seated properly due to rust, tripping the system. My theory is that the previous owner ‘fixed’ the ABS Over-action problem by snipping wires at the ABS module until it stopped.