GM Service Manual Online
For 1990-2009 cars only

Power Mirrors Voltage Supply

Battery voltage is supplied from the MIRRORS fuse through CKT 1040 (ORN) to the power mirror switch terminal 8 and to terminal 9 of the foldaway mirror module. Ground for the power mirror switch is supplied through CKT 150 to terminal 1. Ground for the foldaway mirror module is supplied through CKT 250 to terminal 3.

Left Power Mirror Control

The following list shows the circuits used when each direction switch is pressed on the power mirror switch with the left mirror selected:

    • UP-Voltage is applied to CKT 88 (YEL) to terminal 1 of the vertical motor. Ground is supplied through CKT 1497 (LT BLU/WHT) to terminal 2 of the vertical motor.
    • DOWN-Voltage is applied to CKT 1497 (LT BLU/WHT) to terminal 2 of the vertical motor. Ground is supplied through CKT 88 (YEL) to terminal 1 of the vertical motor.
    • LEFT-Voltage is applied to CKT 1497 (LT BLU/WHT) to terminal 2 of the horizontal motor. Ground is supplied through CKT 81 (WHT) to terminal 3 of the horizontal motor.
    • RIGHT-Voltage is applied to CKT CKT 81 (WHT) to terminal 3 of the horizontal motor. Ground is supplied through CKT 1497 (LT BLU/WHT) to terminal 2 of the horizontal motor.

Right Power Mirror Control

The following list shows the circuits used when each direction switch is pressed on the power mirror switch with the right mirror selected:

    • UP-Voltage is applied to CKT 1498 (BRN/WHT) to terminal 1 of the vertical motor. Ground is supplied through CKT 1497 (LT BLU/WHT) to terminal 2 of the vertical motor.
    • DOWN-Voltage is applied to CKT 1497 (LT BLU/WHT) to terminal 2 of the vertical motor. Ground is supplied through CKT 1498 (BRN/WHT) to terminal 1 of the vertical motor.
    • LEFT-Voltage is applied to CKT 1497 (LT BLU/WHT) to terminal 2 of the horizontal motor. Ground is supplied through CKT 881 (RED/WHT) to terminal 3 of the horizontal motor.
    • RIGHT-Voltage is applied to CKT CKT 881 (RED/WHT) to terminal 3 of the horizontal motor. Ground is supplied through CKT 1497 (LT BLU/WHT) to terminal 2 of the horizontal motor.

Foldaway mirrors

When the power foldaway mirror switch is pressed, voltage is supplied to terminal 2 of the power folding mirror switch through CKT 910 to terminal 10 of the foldaway mirror module. The following list shows the circuits used when the foldaway mirror switch is pressed:

    • EXTEND-Voltage is applied to CKT 911 and CKT 915 to the foldaway mirror motors at terminal 4. Ground is supplied through CKT 914 for the left motor and through CKT 918 for the right motor. CKT 912 and CKT 916 are the limit switch inputs to the foldaway mirror module when the retract mode is selected.
    • RETRACT-Voltage is applied to CKT 914 and CKT 918 to the foldaway mirror motors at terminal 7. Ground is supplied through CKT 911 for the left motor and through CKT 915 for the right motor. CKT 913 and CKT 917 are the limit switch inputs to the foldaway mirror module when the extend mode is selected.