Yeah I read bbs post & it kinda helps
Think about this.
You can pay upwards of $1000 to replace your ABS control module and wheel speed sensors; or, you can read the entire thread (not that one post) and maybe get away for from zero to about $450 dollars (most likely around $100).
NOTE:
The reason the post only "kind of" helped is that it's a single post. No one post is going to answer all your questions and get you up to speed on this issue.
he didn't say the whole module was bad he told me to just order a control unit online
If you read that thread, you'll realize that sentence makes absolutely no sense.
they'll install it for me
Again, if you read the thread, you'll know that it takes less than five minutes to "install" it. In fact, it takes about one or two minutes, and needs only one torx driver, which you should already have in your toolbox.
but I'm not sure what testing they did I assumed they just used the obd & read the codes ?
If you read the thread, you'd realize this has NOTHING to do with OBD (which is for emissions).
In other words, there are no OBD codes (well, there's that P0500 but that comes later and it's detailed in the thread anyway).
I don't have a check engine light or any of that its just the dsc & abs & traction
Now I'm frustrated.
Even if you read only the POST, you'd know there is no check engine light.
So, my suggestion is the following step-by-step DIY:
- Sit down at the desktop computer
- Put your wallet away in the desktop drawer
- Read any or all of the following threads, to completion
- How to physically test & repair the Bosch ABS control module (
1) & how to diagnose the BMW amber ABS BRAKE DSC/ASC trifecta or bifecta (
1) & what are all known options when your ABS control module is bad (
1) & why you want to only buy oem wheel speed sensors (
1) & how to remove and replace the four BMW E39 ABS related WSS wheel speed sensors (
1) & which wss innervates the speedometer (
1) & explanations by 540iman as to why the fancy diagnostic tools always fail to properly diagnose the trifecta or bifecta (
1) & where to get the fancy schmancy diagnostic tools for free once you're aware of their limitations (
1) & why it's probably not the ABS hydraulic pump failing (
1) & how to properly test the BPS brake pressure sensor (
1) & how to properly test and replace the steering angle sensor (
1) & Quick99Si's explanation of why the 10-minute wheel speed sensor diode-action quick test doesn't always work, especially on non-OEM wheel speed sensors (
1) & what's this about the P0500 setting the SES (
1) & why you want to wait a week before getting a smog test after removing your ABS control module (
1) &, if you really want to try, how to attempt to disable the ABS/DSC but keep the speedometer and mpg cluster readouts (
1)
Caption: Here is a picture of my "repaired' ABS control module.