Hi i'm in the same position as you ,I had a correctly working RFK camera and PDC,TRSVC module correctly reported in the tree in ISTA+. Also, the PDC button blinks on/off when in reverse and there is no picture on the screen. I have CIC Retrofit on X6 2009 Pre LCI.
My question is should i
1. Replace the JBBF (Junction Box module under the glove box) with a newer LCI module
2. Extend all of the PDC sensor wires from the old PDC in the Left rear area to the new JBBF module (which has the PDC built into it)
3. Remove the old PDC module
4. Code the new JBBF module
Thanks