Mirror Operation

Mirror Operation







The mirror switch, in the driver's switch block, produces a digital signal for mirror movement. Based on the position of the left/right side adjusting switch, the signal is passed over the P-Bus to the respective door modules. The mirror will continue to move as long as the switch is held until the end limit is reached.

A signal, from the GM III, is sent to the driver's door module when the transmission is shifted into reverse. If the mirror adjustment switch is set to the driver's side, the passenger's side mirror will tilt downward for better viewing while backing up. The mirror returns to the previous setting when the transmission is shifted out of reverse.

The positions of the mirror motors are monitored by feedback potentiometers. The signals from these potentiometers are stored in the respective door modules. These positions are used for the memory recall function to return the mirrors to a set position.

Mirror heating is controlled by each respective door module. The GM III receives the outside temperature over the K-Bus from the IKE control module. The signal then passes over the P-Bus to the door modules. The "ON" time for mirror heating is adjusted based on the outside temperature.