The interior lighting consist of the following two groups. This first group includes lamps that may not be dimmed.

The courtesy lamps, include the reading lamps, the footwell lamps, dome and rear view mirror lamps. The courtesy lamps, may be manually turned on or off by placing the interior lamp switch in the ON or OFF position. When the driver places the dome lamp defeat switch in the OFF position, the courtesy lamps will be disabled. If an outside door handle is lifted or a door is opened, the courtesy lamps illuminate. After all the doors have been closed the courtesy lamps will remain illuminated approximately 15 seconds after the last door closes. The courtesy lamps will also turn on prior to any door being opened, and remain illuminated approximately 40 seconds when the driver removes the ignition key.

The CTSY Fuse 3 20A fuse in the IP fuse block, supplies battery positive voltage to the courtesy lamps. When any door is opened, a courtesy lamp request input is received by the illuminated entry module, or with remote keyless entry (RKE), the remote control door lock receiver. Ground is then supplied to the courtesy lamp circuit through the module or receiver to G200. For manual operation, the ground is supplied through the headlamp switch to G201. Some of the courtesy lamps may also be used as reading lamps by placing the reading lamp switch in the ON or OFF position which supplies ground to the lamps from the body of the lamp assembly.

When the ignition switch is turned to either the RUN or CRANK position the courtesy lamps will turn off immediately.

When the driver uses the door key in order to unlock the doors, the illuminated entry module, or with RKE, the remote control door lock receiver receives a door unlock signal. The module or receivers signal comes from the door jamb switches which ground at G200 and G201. The module or receiver must have inputs that indicate that the ignition switch is OFF, the courtesy lamp switch is OFF and all the doors are closed. The module or receiver will then activate the interior lamps. The courtesy lamps will remain on, approximately 15 seconds after the door is closed. If the ignition switch is turned to either the RUN or CRANK position the courtesy lamps will turn off immediately.

When the driver uses the remote function actuator transmitter to unlock the doors, or presses the panic button, the module or receiver will keep the courtesy lamps on approximately 40 seconds. When the driver uses the remote function actuator transmitter to lock the doors, the module or receiver will keep the courtesy lamps on approximately 2 seconds. When the ignition switch is turned to either the RUN or CRANK position the courtesy lamps will turn off immediately.

The CTSY Fuse 3 20A fuse in the IP fuse block, supplies battery positive voltage to each vanity mirror lamp. When the vanity mirror cover on the sunshade is opened, its switch closes to provide a ground circuit and the vanity lamp illuminates. The vanity lamps are grounded at G200.

The CTSY Fuse 3 20A fuse in the IP fuse block, supplies battery positive voltage to the instrument panel compartment lamp. When the IP compartment is opened, its switch closes to provide a ground circuit and the IP compartment lamp illuminates. The IP compartment lamp is grounded at G201.

The second group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination and incandescent lamps.

When the ignition switch is turned to the ON position, the radio's vacuum fluorescent (VF) displays turn on at maximum brightness. When the park lamps are on, all incandescent back lighting turn on at the dimming level indicated by the IP dimmer switch. At the same time all vacuum fluorescent (VF) displays dim to match the indicated dimming level. Battery positive voltage is supplied through the PARK LPS 20 A fuse 9 in the IP fuse block to the switch. The panel dimmer switch potentiometer receives its voltage from the headlamp switch. When the driver selects a dimming setting by moving the IP dimming switch potentiometer, the ILLUMN 10 A fuse 14 in the IP fuse block receives a specific voltage. All incandescent back lighting lamps are then provided with the same specific voltage from the ILLUMN 10 A fuse 14 in the IP fuse block. The interior dimming lamps are then grounded at G201, G101, and G400. When the IP dimmer switch is moved from MIN to MAX, all vacuum fluorescent (VF) displays, as well as all incandescent back lighting respond from minimum intensity to maximum brightness in response to the IP dimmer switch.

The driver may select parade mode by manually turning the IP dimmer switch in the parade mode. The LED dimming signal circuit supplies voltage to the instrument panel cluster and radio for a park lamp on input, and the displays will become full bright.

Driver controls include the following components.

The illuminated entry module or remote control door lock receiver process the inputs and the controls of the illuminated entry lamps due to the activation of the door jamb switches.