Wiring

Blue red twisted pair wired to the BMW pt can connection at grey dme connector blue red twisted pair.  4 pin Holley connections to corresponding 4 pin connection on Holley harness.  Be sure to check for broken or bend pins when installing.  12 pin connector at the can box connection is directional, plug with keys in correct location. 

Ac Input

See ac page here: Holley can box lse9x Ac control setup

Wheel speeds

Wheel speed can be configured as shown below
Channel a and b are front wheels, c and d are rear wheels. Values are transmitted as mph or km depending how the car is configured.