Rear View Mirrors - System Operation and Component Description

Network Message Chart

Module Network Input Messages — PDM

System Operation - Exterior, Power, With Memory

When a memory recall or save is initiated, the DDM sends the memory command message to the PDM through the MS-CAN. Based on this message, the DDM and PDM recall the requested memory preset mirror position from internal memory or save the current mirror position to correspond with the requested preset. During a memory recall, the DDM and PDM supply voltage and ground to the appropriate exterior mirror motors to achieve the desired memory positions that are stored in memory based on feedback from the mirror motor sensors. If the exterior mirror control switch is activated in any direction during a memory recall, the DDM sends the manual mirror override message to the PDM. After this message is received, the DDM and PDM abort the memory recall. After the recall is aborted, the DDM or PDM respond to the exterior mirror control switch inputs. A memory recall is also aborted if the driver seat control switch is activated in any direction during a memory recall.

The LH exterior mirror glass position memory presets are stored in the DDM and the RH exterior mirror glass position memory presets are stored in the PDM.

A memory recall or memory save can be initiated by the memory set switch, RKE transmitter or Intelligent Access (IA) key (if equipped) or the keyless entry keypad. For additional information on memory recall or memory save, refer to the Owner's Literature.

For additional information on the memory feature, Refer to: Front Seats - System Operation and Component Description (501-10A Front Seats, Description and Operation).

System Diagram - Exterior, Heated, Without Memory