Hi Robert. I'm looking at the wiring diagram for the dcc suspension and I think I understand that the two modules (dcc and afs xenon) are connected to the pins of the front and rear trim sensors, is that correct. ThanksFor electrically controlled suspension (DCC) there is different bit to be activated in 55. With such a configuration all 3 level sensors are connected to the DCC controller instead of LWR and level signals (front & rear) are fed to headlights range controller via CAN.
In your case I am 100% sure that your loom wires, between range module and one or both sensors are mixed (5V DC, GND, PWM).