Hi Prospect25 - sounds like a right can of worms!
This one might be a bit out of my league...
I am a bit like you i.e. when I had on-going problems it was tempting to let the beast go - however, in my case the perseverance paid off - I hope it does for you - I hate to give up eh!
Having had the YAW failure (Lateral Acceleration Sensor) failure, this does not sound like that!
Pls don't take my word for it but I also do not think that it is the Ride Height Level Control Unit - this may be locked out as a result of the root fault.
The thing I do not understand here, is why on replacement of the Rear Left Wheel Sensor (or even swapping it with the right) still shows the same fault code.
This could point to the DSC Control module - are you in USA?? Over here in UK there is a couple of workshops that can test (if removed of course) the DSC/ABS & re-build if req'd for a flat fee fraction of the new cost.
Back to yours - there are lots of bits connected to the DSC (YAW, Streering angle Sensor, Wheel Spd sens, AGS - gearbox control) to name just a few not to mention 4 or 5 gadgets on the can-bus!
Is there somewhere you can get the DSC checked out as this rear wheel thing sounds inconsistent?
This is probably a really stupid question - but is your battery good on volts? My battery went low at one point and it caused havoc with loads of systems in the car... just checking!
I used to work in industrial electronics (Audio & A/V now) and I have to say some of these auto electrical faults drive me nuts!
Let us know how you get on!
I would be interested to see what the others on here write - there are some great guys on here who understand this stuff back to front!
Attached is a pic - hopefully attached - may not be the same as yours but gives you an idea of what is connected.
V best malc

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