am i likely to luck out on a controller that actually works? so far we've tried three? is there another issue perhaps?
yep controller part of the ABS module was friedddd, ABS light always onX2 ^
I am still uncertain exactly what you are having issues with. I can only assume you have a solid, always on ABS light. If so, the only help you may get from a dealership will be like what 4.3L said above and they'll run a diagnostic like your mechanic most likely did, and that's about it. They have been out of stock on those controllers for a while now. At least here stateside, you may have had better luck in Aussie land.
I have not found any brand new, un-used ABS controllers lately. It's been a bit. The last time I found one, they were around ~$2,000 USD. I am sure you can find one from a junk yard(if they'll even sell it to you).
IS there anything else going on with how the Jeep is running, besides the ABS light?
Sorry I didn't get back to you. 2 very long days at work. I'm actually working right now, 😊
A turbo v8? Wtf? I didn't know that was ever an option. U.S. rules suck! If that is what module you have and it's fried, but you don't have that engine, it may be a wiring issue. Make sure you disconnect the battery before installing. I'm gonna try real hard too get you the wiring for the v8 turbo, smh still can't believe this.....😲
was replacing my ABS computer and found this post. If I may provide some clarification:
52009240 is the P/N for the ABS Pump ECU Unit...this is the computer for the modulator...which goes bad often. You can call it the "ABS Computer" or whatever you want to call it...this is the one with the circuit board with the bad solder.
52009047 is the P/N for the ABS modulator itself...not the computer...and doesn't go bad very often. This is the actual pump
These two bad-boys are mated together and, as a single unit, are referred to as the "ABS Control Unit" in a lot of documentation. This is where the confusion seems to be, the language. It's two parts in the same system...a modulator (aka pump) and a computer controlling it. Adding to the confusion is that, when junk yards pull these things, they pull them as a whole unit...the two parts together, pump and computer. And they generally only see the one label, for the computer, the 52009240...so you'll see a lot of these being sold with the pump right along with it under the 52009240 part number. They don't know any better and, to the untrained eye, yeah, they look like a single unit. They're not.
As far as bleeding goes, there is absolutely NO NEED to bleed anything when replacing just the computer...the system isn't opened at all when replacing the 52009240...it also isn't paired with the car or anything...it's a straightforward remove and replace...you're just pulling it off and putting a new one back on. Any dealer telling you that the ABS computer needs to be paired to the car would be mistaken. On a newer car, for sure, but not on a ZJ.
You WILL need to bleed the system and will need a DRB tool if you replace the modulator itself, the 52009047...the system will be opened to do that job and bleeding is required.
In case someone is tackling this in the future, I wanted to post this for clarification. Rock on.