Left Coast Geek
Full Access Members
the umpteen modules are each on one of the 4 different buses, HS1 CAN, HS2 CAN, HS3 CAN, and MS CAN. These are all connected to the Gateway Module which acts as a router, and connects HS1 and HS2 to the diag port... So I would start by confirming the two power lines get to the gateway (pin 13, pin 24), and signal ground on pin 14, chassis ground on pin 4.