AWD to RWD Stagea - ABS Problems

[Scoot.]

Hello fellow Wagoneers, 

My S1 RS4 Stagea has recently hit the dyno, after being swapped from AWD to RWD using a CD009. 
The Atessa pump has been disconnected, and the TPS signal is handled via the Adaptronic M6000 now controlling the 1UZ up front.

We're trying to set up traction control and wheel speed using the ABS sensors on all four wheels, but due to the car being RWD now, the ABS isn't outputting a signal. 

The fuse isn't pulled, but the Atessa pump is disconnected (for obvious reason)
Has anyone successfully managed to  to retain factory ABS after a transmission swap? And how did you go about it?

Thanks

[GTSBoy]

Put a scan tool on it, interrogate the ABS CU to find out what it is upset about, and start with fixing those things. More than likely, because ATESSA, HICAS, TCS and ABS are all mixed up together, crippling one of them can make all of them go sad. (yes, I know you don't have HICAS or TS, but you get the point, right?)

[Scoot.]

Error codes given are as follows.

1, 2, 3,4 - Wheel Speed (I believe)
75 - TPS?
53 -  Pressure switch

Has anyone ever had success tapping in to the existing ABS Sensors on the wheels, to use as a signal for aftermarket traction control? 

[GTSBoy]

3 hours ago, Scoot. said:

Has anyone ever had success tapping in to the existing ABS Sensors on the wheels, to use as a signal for aftermarket traction control? 

Yes.