Power Mirror Adjustment
When the exterior mirror control switch is pressed up, down, left or right, the command is sent through a proprietary LIN circuit from the master window control switch to the DDM. If the LH mirror is selected, the DDM supplies voltage and ground to the appropriate LH exterior mirror motor. If the RH mirror is selected, the DDM sends a movement request over the MS-CAN to the PDM. The PDM supplies voltage and ground to the appropriate RH exterior mirror motor.