HUD Image Position Control

The HUD adjuster motor is connected to the HUD control switch on CKT 621 (YEL) terminal 6 and CKT 620 (BRN) terminal 5. Both circuits are normally grounded within the switch. Pressing the UP or DN button on the switch connects one of the motor circuits (CKT 620 or CKT 621) to ignition voltage. This condition causes the motor to run and moves the HUD display up or down.