Component Description: DDM

For the exterior mirror power functions, the DDM receives mirror movement requests through the LIN circuit from the exterior mirror control switch. When the LH exterior mirror is selected, the DDM provides voltage and ground to the appropriate LH exterior mirror motor to drive the mirror glass in the desired direction. The DDM sends RH exterior mirror movement requests to the PDM through the MS-CAN.

For the exterior heated mirrors feature, the DDM is responsible for supplying voltage to the LH exterior mirror glass heating element based on messages received from the FCIM.

When a concern exists, the DDM is capable of setting and storing Diagnostic Trouble Codes (DTCs) for the LH exterior mirror motor drive circuits, position sensor circuits and heater element circuits.

PMI is required if installing a new module.