Local Interconnect Network (LIN) Description

WARNING: This page is about a different car, the 2008 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

The driver door module (DDM) and the front passenger door module (FPDM) communicate with window motors on the local interconnect network bus 1 and the local interconnect network bus 2 circuits respectively. The DDM LIN buss is connected to all window motors on its side of the vehicle, while the FPDM LIN buss is connected to the other window motors. Communication on this network is only between the door modules and the window motors. The window motors are in effect modules. The window motor modules do not communicate on any other data buss; therefore the door modules, which also communicate on the low speed GMLAN serial data buss will perform all communication with each other, the motors, the BCM (gateway) and the scan tool including setting LIN buss DTCs.