Vacuum Fluorescent (VF) Dimming

The brightness of the VF display is controlled by the following 2 signals:
- The park lamp signal (CKT 9)
- The VF dim signal (CKT 308)

With the park lamps activated, the following components will dim for night time viewing:
- The VF display of the radio
- The PRNDL
- The driver information display (if equipped)
- The radio rear seat audio control (if equipped)

When the park lamps ON signal is not present, (park lamps are in the OFF position), the VF display is at its high brightness for daytime viewing. The headlamp and the (IP) lamp dimmer switch provide a dimming signal through CKT 308. This controls the brightness of the VF display when the headlamp and the IP lamp dimmer switch is adjusted.