4
Installation Instruction P/N 01 29 2 154 664
Wiring
1. Remove the spare wheel bracket/air
suspension pump (1) by removing the four
bolts (2).
2. Remove the plastic electrical box cover plate
(1) by removing the three Phillips head
screws (2).
3. Remove plastic carrier plate (1) by removing
the three Phillips head screws (2 & 3).
4. Clip the trailer module (1) onto the carrier
plate (2).
5. Locate the 15-pin black connector (X609),
and attach to the trailer module (1).