Door Control Modules (DCM)

There are two DCMs used on this vehicle, one for each front door. They are the Driver Door Module (DDM) and the Passenger Door Module (PDM).

The DDM provides power to the DSM and both of the DCMs provide support for window lift motor position sensors. The DCMs report the window position status as a percentage of full open or down using a Controller Area Network (CAN) bus signal. Full closed (up) hard stop position is reported as 0% while full open (down) hard stop position is reported as 100%.

The DDM receives LIN inputs from the DSM to activate and control the window lift motors based on the switch input captures in the LIN bus message request. The DDM also provides a CAN-Interior High Speed (CAN-IHS) message to the PDM when passenger side window actuations are requested by the DSM. The PDM uses a MUX circuit.

The DCMs provide Anti-Pinch functionality. Both modules have Anti-Pinch algorithms that sense obstacles in a predetermined Anti-Pinch zone. This function is active during manual and express window operation. If a pinch force is detected the exceeds a calibrated level, the DCM will command the appropriate window motor to auto reverse.

Inputs

• DSM window switch requests
• Door ajar switch states from the BCM
• Accessory (ACC) delay status from the BCM
• Ambient temperature reading from the BCM
• Gated odometer values from the BCM
• Battery voltage levels from the BCM
• Remote start active signal from the BCM
• Ignition status from the BCM
• Vehicle configuration parameters from the BCM
• Window position sensor percentage value from the lift motor
• PDM switch sense for the passenger DSM to the PDC
• PDM switch illumination for the passenger DSM to the PDC

Outputs

• Drivers window position
• Passengers window position
• Window lift motor
• CAN-IHS message to PDM for power window requests from the drivers DSM
• Ignition status to the DSM
• ACC delay indication to the DSM
• PDM switch illumination for the passenger DSM from the PDC
• PDM switch sense return for the DSM from the PDC
• DSM window lockout switch feed