As some of you frequent visitors to this forum know, I was unable to solve a limp mode problem on my Phaeton. After loads of research, I realized I had a problem with my ABS Control Module.
I sent it off to www.cheapabs.com for repair. When it came back I reinstalled it, bled the brakes, drove it for almost a week and everything was fine. Today, driving the car back to the office from lunch I got the dreaded Fault Level Workshop. Driving it home after work I could tell it was riding very low in the front. It felt like it was hitting bumpstops.
I got home and, as suspected, the front end of the car was very low. I hooked up VCDS and looked at Measuring Blocks for 34-Level Control. I copied each value to Notepad and saved it. The values are here: https://t.ly/g95Km
In looking through the readings, the Group 5 values jumped out at me. They showed LF=234mm, RF=49mm. Those values are supposed to represent the distance from the centerline of the wheel to the underside of the fender edge. Since the entire front end is sitting very low and (it appears) level, those numbers should be fairly close to each other, but they are more than 7" different from each other. (I measured the actual and it is around 330mm.) I thought that a good first step would be to set the adaptation for the levels of the four corners per the procedure on the Ross-Tech website. I had a lot of trouble getting through the Security portion and once I did I could not do the adaptation. Several times, after pressing "Go" it would get stuck on "WAIT" and not change to "VALUE" (as Ross-Tech says it should) where you are supposed to enter the measured height. Screenshot of the Ross-Tech that just sits there: https://t.ly/GN1r
One final tidbit that may or may not be meaningful: I am not 100% certain that I put the car in Jack Mode before removing the ABS Control Module which I read somewhere disables it. I also read that setting the Group 00 to 0 rests the module but it did not work for me.
Any idea what might be going on here and what to do next?