Power Mirror System - RPO DS3

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Power Mirror System Components

The power mirror system consists of the following components:

Driver Door Switch (DDS)-An electronic control module with integrated switches and requires programming when replaced
Passenger Door Switch (PDS)-An electronic control module that requires programming when replaced
Power Mirror Direction Switch-Integrated into DDS and is a 4 position momentary switch that provides a signal input to the DDM for up, down, left and right with mirror switch activation
Mirror Select Switch-Integrated into DDS and is a 3 position switch that allows the operator to select the left or right mirror and also a neutral position
Left Outside Power Mirror-Contains both the vertical and horizontal mirror motors
Right Outside Power Mirror-Contains both the vertical and horizontal mirror motors

Each of the outside power mirrors contains 2 reversible motors to provide horizontal and vertical movement of the mirror glass. The vertical motor operates the up and down directions and the horizontal motor operates the left and right directions. Each outside power mirror also contains a reversible fold motor to operate the extend and retract functions.

Power Mirror System Controls

The power mirror switch incorporates a 2-position mirror select switch and a 4-position mirror direction switch. The mirror select switch allows the operator to select the mirror to be moved by selecting the L position for the left power mirror, selecting the R position for the right power mirror or the center which is the neutral/fold position. The mirror direction switch is a 4-position switch that allows the operator to move the selected mirror up, down, left or right.

Power Mirror System Operation

The power mirror switch is integrated into the DDS. The left and right mirror positions of the select switch and 4 positions of the direction switch, when active, will provide a signal to the DDS. Upon receipt of these signals, the DDS will provide battery voltage to the mirror motor up/right control circuit and ground to the mirror motor down control circuit and the mirror will move up. The remainder of the driver mirror functions operate in the same manner as described above except the DDS will supply battery voltage and ground to the appropriate control circuits for the direction selected. If the passenger mirror is selected and a direction switch is activated, the DDM sends a serial data message to the PDS indicating that the passenger mirror was selected and the direction to be commanded. The PDS will then supply battery voltage and ground to the appropriate control circuits for the direction selected.