Door Control Module (DCM)

Both DCMs are responsible for providing the appropriate sides electronic mirror motors with battery level voltage and ground to drive the mirror in the desired direction. The DCM provides motor overheat protection to guard against continuous activation of the mirror motors to no more then 20 seconds.

Inputs

• Mirror Light Emitting Diode (LED) request
• Vehicle configuration information
• Electronic Control Unit (ECU) configuration message status
• Commanded ignition switch status
• HVAC Electronic Back Light (EBL) status
• DSM mirror switch inputs

Outputs

• Mirror heat feeds
• Mirror motor power and ground
• Mirror motor control
• DSM mirror LED requests
• CAN-IHS output from the DDM to the PDM for passenger door mirror operation