Component Description

BCM

The BCM is a multifunction module that requires a PMI when replaced.

Refer to: Module Configuration - System Operation and Component Description .

DDM

The DDM receives power window commands from the driver door window control switch through a LIN. The DDM supplies voltage and ground to operate the driver door window regulator motor. The DDM also communicates driver door window control switch requests to the PDM through the MS-CAN.

For the power mirror functions, the DDM controls the LH exterior mirror glass position by supplying voltage and ground to the LH exterior mirror motors based on inputs from the master window control switch. When the RH exterior mirror is selected, the DDM forwards the movement requests to the PDM through the MS-CAN. To control the heated mirror function, the DDM supplies voltage and ground to the LH exterior mirror glass heating element based on messages received from the FCIM. For the memory mirror function, the DDM supplies voltage and ground to the LH mirror motor potentiometers. The DDM monitors the feedback from these potentiometers to determine the mirror glass position. Memory mirror positions are stored in the DDM memory. For more information:

Refer to: Handles, Locks, Latches and Entry Systems - System Operation and Component Description .
Refer to: Glass, Frames and Mechanisms - System Operation and Component Description .
Refer to: Rear View Mirrors - System Operation and Component Description .

The DDM requires PMI when replaced.

Refer to: Module Configuration - System Operation and Component Description .

PDM

For the power window function, the PDM receives power window commands from the passenger door window control switch or from the DDM through the MS-CAN.

For the power mirror function, the PDM controls the RH exterior mirror glass position by supplying voltage and ground to the RH exterior mirror motors based on messages received from the DDM. To control the heated mirror function, the PDM supplies voltage and ground to the RH exterior mirror glass heating element based on messages received from the FCIM. For the memory mirror function, the PDM supplies voltage and ground to the RH mirror motor potentiometers. The PDM monitors the feedback from these potentiometers to determine the mirror glass position. Passenger mirror positions are stored in the PDM memory. For more information:

Refer to: Handles, Locks, Latches and Entry Systems - System Operation and Component Description .
Refer to: Glass, Frames and Mechanisms - System Operation and Component Description .
Refer to: Rear View Mirrors - System Operation and Component Description .

The PDM requires PMI when replaced.

Refer to: Module Configuration - System Operation and Component Description .

RTM

The RTM communicates all RKE and passive key information to the BCM over a LIN circuit and (when the network is awake) the CAN. The RTM is an antenna that receives the high frequency signals from passive keys.

The RTM requires PMI when replaced.

Refer to: Module Configuration - System Operation and Component Description .