Exterior Lighting

The exterior lighting subsystems covered include the following:
^ Headlamps with autolamps.
^ Stoplamps.
^ Turn signal lamps/hazard flasher lamps.
^ Cornering lamp.
^ Parking lamp.
^ Backup lamp.

[1][2]Lighting Control Module
This vehicle uses a Lighting Control Module (LCM). This eliminates the electronic interference and heat associated with the thermo-electric devices used previously. The LCM:
^ Is a microprocessor based module that controls several vehicle subsystems.
^ Responds to electrical input signals from various switches, sensors, and external modules.
^ Is located on the LH side of the instrument panel.
^ Subsystem functions include:
^ Headlamps with autolamps.
^ Turn signal lamps/hazard flasher lamps.
^ Cornering lamp.
^ Parking lamp.
^ Daytime running lamps (DRL) (Canada only).
^ Courtesy lamps.
^ Demand lamps.
^ Battery saver.
^ Backlighting.
^ Interfaces with the Driver Door Module (DDM) via SCP for illuminated entry.

Headlamps
The headlamp system consists of:
^ Two aerodynamic headlamps with replaceable halogen headlamp bulb and retainers.
^ Multi-position headlamp switch.
^ Headlamp dimmer switch (part of multi-function switch).
^ LCM.
^ Circuit wiring and circuit protection.

In normal operation:
^ With the headlamp dimmer switch in the LO position (middle position), power is supplied by the LCM to the low beam elements.
^ With the headlamp dimmer switch in the HI position (forward detent), power is supplied by the LCM through the multi-function switch to the high beam elements and the high beam indicator is controlled by the instrument cluster in response to SCP message from the LCM.
^ When the headlamp dimmer switch is pulled toward the steering wheel, the flash-to-pass switch in the multi-function switch is closed, and power is supplied to the headlamp from the LCM (through the multi-function switch). When the headlamp dimmer switch is released, the head lamps return to LO beam.
^ The battery saver feature of the LCM will automatically turn off exterior and interior lamp under the following condition:
- Ignition switch OFF.
- Headlamp switch in PARK or HEAD.
- After 10 minutes.

Headlamp Delay System -Autolamp
The autolamp system:
^ Provides light sensitive on-off control of the lamps normally controlled by the headlamp switch.
^ Provides for increased visibility for occupants when leaving the vehicle by keeping the lamps on for a preselected period of time after the ignition switch is turned OFF.
^ The preselected time lapse can be adjusted by the vehicle operator for up to three minutes.

The system consists of:
^ A light-sensitive light sensor amplifier.
^ LCM.
^ An autolamp time delay control which is part of the LCM and includes an OFF position.

For the autolamp system to be operational, the autolamp time delay control must be moved from the OFF position and the headlamp switch must be OFF.

In normal operation:
^ The system will turn the exterior lamps on when the light available to the light sensor amplifier decreases below a predetermined level, such as at sunset.
^ The lamps will automatically turn off when the level of outside light exceeds a predetermined level, such as during daylight hours.

The light sensor amplifier:
^ Is mounted in the center of the defroster grille panel.
^ Must always be exposed to outside light to function properly.

Do not place any items in the center of the windshield which may block light to the light sensor amplifier and cause erratic operation of the system.

The autolamp time delay control (part of the LCM), located to the left of the steering column and part of the headlamp switch operates as follows:
^ The auto lamp system is functional for automatic operation when the autolamp time delay control is moved from the OFF position.
^ The autolamp time delay is controlled by rotating the headlamp switch in a counterclockwise direction (maximum three minutes).

Turning on the regular headlamp switch will override the auto lamp. Automatic operation will not be possible until the regular headlamp switch is turned OFF.

Daytime Running Lamps (DRL)

NOTE: The Daytime Running Lamps (DRL) feature must be programmed ON for Canadian vehicles.

The DRL feature is required for Canadian vehicles and is controlled by the LCM. The DRL feature operates the vehicle's low beam headlamps at reduced power during the daytime to make the vehicle more visible.

The DRL feature is to be ON when all the following conditions are met.
^ Ignition switch position is in RUN.
^ Headlamp switch is in OFF or parking lamps ON positions.
^ Autolamp function has not activated the headlamp.
^ PRNDL switch is not in PARK.

The driver can disable the DRL system by any one of the following actions.
^ Turning the ignition switch to any position but RUN.
^ Placing the vehicle in PARK.
^ Turning the autolamp switch ON with autolamp sensor indicating night.
^ Turning the headlamp switch ON.

Headlamp Switch
The headlamp switch is a multi-position switch.
^ The positions include OFF, PARK, and HEAD.
^ With the headlamp switch in the PARK position (first detent), a signal is supplied to the LCM which powers the front parking lamps, the tail lamps, the rear side marker lamps, and the license lamp.
^ With the headlamp switch in the HEAD position, power is supplied to the headlamps through the LCM. The multi-function switch input tells the LCM to turn on low beams or high beams.

Panel Dim Switch
^ The panel dim switch is located above the headlamp switch. The panel dim switch operates only with the parking lamps or headlamp in the ON position.
^ When the panel dim switch is held in the up position, the instrument panel lighting will progressively brighten.
^ When the panel dim switch is held in the down position, the instrument panel lighting will progressively dim.

Headlamps On Warning Chime
If the headlamp switch is left in either the PARK or HEAD position and the driver door is opened, the LCM will sound a headlamps on reminder chime when the following conditions occur:
^ The ignition switch position is in OFF with ignition key out.
^ The driver door is ajar.

Brake Pedal Position (BPP) Switch
The brake pedal position (BPP) switch provides power to the stoplamps. The LCM signals various other systems, including:
^ Anti-lock brake control module.
^ Powertrain control module (PCM).
^ Shift lock actuator.
^ Speed control servo.

Lamps -Parking, Rear/Marker
The power to these lamps is provided through the LCM and interconnected wiring with the headlamp switch in the PARK, HEAD, AUTOLAMPS or NIGHT positions.

Stoplamps

NOTE: The stoplamps are powered from the BPP switch directly, not from the LCM.

Stoplamps are mounted in the same housings as the rear lamp.

Stoplamp functions are performed by double filament bulbs. The low power filaments are dedicated to the parking lamp operation. Stoplamps utilize the high power filaments when the driver applies the brake pedal.

Lamp, Rear Hi-Mount
The rear hi-mount lamp is mounted in the rear window area. It operates in conjunction with the stoplamps.

Lamps, License
The license lamps:
^ Are located in the luggage compartment door.
^ Have replaceable miniature bulbs.
^ Are provided power through the LCM when headlamp switch is in either the PARK, HEAD, or AUTOLAMP positions.

Lamps, Backup

NOTE: The backup lamps are not powered by the LCM.

The backup lamp system consists of:
^ Backup lamp below the rear lamp.
^ Circuit wiring and circuit protection.
^ Digital transmission range (DTR) sensor.

With the transaxle in REVERSE, the DTR sensor closes and power is provided to the backup lamp bulbs.

Lamps, Cornering
The cornering lamps are powered from the turn signal circuit. When the multi-function switch is activated and the headlamps are on, the cornering lamp on the turn side will illuminate, and remain illuminated until the turn signals cancel.

Turn Signal and Hazard Lamps
The turn signal system consists of:
^ Turn signal miniature bulbs.
^ LCM.
^ Turn signal indicator in the instrument cluster.
^ multi-function switch.
^ Circuit wiring and circuit protection.

The signal system operates as follows:
^ The turn signal functions are performed by double filament bulbs in lamp assemblies located next to the headlamps.
^ The turn/hazard function utilizes the second filament of the appropriate bulb(s).
^ With the multi-function switch in the right turn position, power is supplied to the RH front and rear turn signal miniature bulbs and the RH turn indicator in the instrument cluster.
^ With the multi-function switch in the left turn position, power is supplied to the LH front and rear turn signal miniature bulbs and the LH turn indicator in the instrument cluster.

Hazard Flasher Switch
The hazard flasher switch (part of the multi-function switch) is located on the top of the steering column, forward of the steering wheel.
^ The hazard flasher switch should cycle smoothly from OFF to ON by pressing and releasing the switch top.
^ The switch should produce an audible click when it toggles from one state to another.
^ The switch should extend markedly further above the column when the switch is ON than it does when it is OFF.

When the hazard flasher switch is in the ON position, the four turn signal lamps will flash. Also, the two turn indicators in the Hybrid Electronic Cluster (HEC) will flash simultaneously.