RWAL will just have a dump valve, 4WAL will have the motor controller.... and also front wheel speed sensors.

 

So if I'm rear wheel drive then there are no sensors which means either I have a bad abs module or the rear diff mounted sensor has a wire break somewhere? Doesn't seem like there is anything else left to troubleshoot besides those two items.

 

If your speedometer works properly, the rear sensor is fine. I don't know if there is a separate controller for abs on yours, it may just be controlled by the PCM......

 

Apparently I forgot to take photos, but this is what I pulled out. https://www.moparpartsgiant.com/part...5010917ab.html

Is that not the abs controller?

 

That's what it says it is. I believe them.

 

While similar looking, that one shows it's for a Dodge Dakota pickup truck. If you're looking to replace the controller, definitely get the part number off of your's so you get the correct one.

 

Yup, I just was trying to show basically what I pulled out and google is incredibly bad about differentiating between b1500 vans and 1500 trucks. From what I can tell, they basically all used the same kelsey hayes controller with 2 different letters at the end of the part number.

Anyway, I just had an idea. An epiphany if you will. My parents have a '98 b3500, 5.9, rear wheel drive. I wonder if I stole their ABS controller whether it is the same as mine and whether that would tell me if mine is bad. God, it's such a pain in the rear to remove it though....

Then again, I've definitely had to hit the brakes in their van and the ABS didn't engage and I went screeching into an intersection (guy ran a red light in front of me). So I don't even know if their ABS is functional despite not having any lights on.

 

Update: it's my abs module.

Kind of anticlimactic. My module causes the exact same issues when connected to my parents' b3500. Their module works perfectly in my van.

 

At least you now know what the issue is. Check eBay or here https://www.car-part.com/ for a used one.

 

Thanks. Car-part actually shows more results than I was expecting. I wonder if there is any difference between years, V6, V8 5.2, V8 5.9, etc. Mine is a P52009460AK while my parents' is a P52009461AE from a '98 b3500 with the 5.9L. It didn't throw any codes in my 2000 b1500 5.2L but who knows. I didn't actually go out and stomp the brakes.