Exterior Lighting

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.
^ Stoplamps.
^ Turn signal lamps/hazard flasher lamps.
^ Cornering lamps.
^ Parking lamps.
^ Backup lamps.
^ Daytime Running Lamps (DRL).
^ Courtesy lamps.
^ Demand lamps.
^ Battery saver.
^ Backlighting.
^ Interfaces with the Driver Door Module (DDM) for illuminated entry and anti-theft systems.

EXTERIOR LIGHTING
The exterior lighting subsystems covered includes:
^ Headlamps with autolamps.
^ Stoplamps.
^ Turn signal lamps/hazard flasher lamps.
^ Cornering lamps.
^ Parking lamps.
^ Backup lamps.
^ DRL.

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

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 high beam relay to the high beam elements and to the high beam indicator in the instrument cluster.
^ 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 headlamps, from the LCM (through the high-beam relay). When the headlamp dimmer switch is released, the headlamps return to LO beam.
^ The battery saver feature of the LCM will automatically turn off exterior and interior lamps under the following condition.
^ Ignition switch OFF.
^ Headlamp switch in PARK or HEAD.
^ A predetermined time period has lapsed.

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. An autolamp indicator lamp will light when the lamps are energized by the autolamp system.

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 system light sensor amplifier:
^ Is mounted under a group of slotted holes in the instrument panel upper finish panel, left of the steering column.
^ Must always be exposed to outside light to function properly

Do not place any items in the LR corner 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 right of the headlamp switch operates as follows:
^ The autolamp system is functional for automatic operation when the autolamp time delay control is moved from the OFF position.
^ The longer the autolamp time delay control is held toward the max-delay, the longer the lamps will stay on after the ignition switch is turned to the OFF position.
^ The autolamp delay time is displayed in the message center when the autolamp switch is pressed.

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

Daytime Running Lamps (DRL)
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 OFF.
^ Autolamp function has not activated the headlamps.
^ PRNDL switch is not in PARK or NEUTRAL. 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 or NEUTRAL.
^ Turning the autolamp switch ON with autolamp sensor indicating night.
^ Turning the headlamp switch ON.

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

Panel Dim Switch
^ The panel dim switch is part of the LCM. The panel dim switch operates only with the parking lamps or headlamps in 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 all of the following conditions occur:
^ The ignition switch position is in OFF with ignition key out.
^ The headlamp switch is in either the parking lamps or headlamps position.
^ The driver door is ajar.

Brake Pedal Position (BPP) Switch
The BPP switch provides a signal to various systems, including:
^ Stoplamps.
^ Anti-lock brake 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 PARK or HEAD position.

Stoplamps
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 tail lamp operation and are on when the headlamp switch is in PARK. Stoplamps utilize the high power filaments. The stoplamps light 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 or HEAD position.

Lamps, Backup
The backup lamp system consists of:
^ Backup lamp in the rear reflector (part of rear lamp reflector).
^ Transmission range (TR) sensor.

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

Lamps, Cornering
The cornering lamps are fed from the turn signal circuit. When the multi-function switch is activated, 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.
^ Multi-function switch indicator bulbs in the Virtual Image Instrument Cluster (VIC).

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 VIC.

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 VIC will flash simultaneously.