Exterior Lighting

EXTERIOR LIGHTING

Conventional Headlamp System
The front side lamps are built into the headlamp housing and cannot be removed separately. The headlamp assembly is equipped with a H4L-50/55W bulb for low beam and high beam.

The headlamp system consists of:
- two headlamp assemblies
- lamp switch
- relay for switching between main and low beam
- direction indicator/low beam switch
- high beam display
- wiring
- fuses

The voltage is supplied to the lamp switch through a fuse. This fuse is located in the central junction box (CJB) in the left footwell.

When the headlamps are switched on, a voltage is supplied to the multifunction switch and to the low beam relay. The relay for the low beam is located in the battery junction box (BJB) in the engine compartment.

If the multifunction switch is set to low beam, then voltage is supplied through the low beam relay to the low beam filament of the headlamp bulb. The left and right-hand low beams are fused separately. The fuses are located in the BJB.

If the multifunction switch is set to high beam, then voltage is supplied through the high beam relay to the high beam filament of the headlamp bulb. The left and right-hand high beams are fused separately. The fuses are located in the BJB.

Headlamp Switch
The headlamp switch has up to four positions:
- off
- parking lamps
- headlamps
- fog lamps (if equipped)

When the headlamp switch is set to the parking lamp position, a voltage is supplied to the front and rear side lamps, as well as to the license plate lamp. The fuses are located in the CJB.

When the switch is set to the headlamps position, the fog lamps (if equipped) can be switched on by pulling the switch.

Stoplamps
The stoplamps are part of the rear lamp assembly. When the brake pedal is applied, the stoplamp switch supplies voltage to the generic electronic module (GEM) and the high mounted stoplamp. The GEM then supplies voltage to the rear lamps.

Reversing Lamps
The reversing lamp system consists of:
- reversing lamp
- digital transmission range (TR) sensor (automatic transmission)
- reversing lamp switch (manual transmission)
- wiring
- fuse

The voltage supply to the reversing lamps is provided by the reversing lamp switch on vehicles equipped with a manual transmission and by the digital TR sensor on vehicles equipped with an automatic transmission. There is a fuse for this circuit in the CJB.

Turn Signal Lamps and Hazard Warning Lamps
The turn signal lamps and hazard warning lamps system consists of:
- hazard switch
- multifunction switch
- GEM
- turn signal lamps

When the multifunction switch is placed in the LH or RH turn positions, a voltage signal from the GEM is routed to ground. When the GEM detects the multifunction switch in the LH or RH turn position, the GEM supplies voltage to the appropriate turn lamps in a flashing manner. When operating correctly, the turn lamps flash approximately 80 times per minute.

When the hazard warning switch (located in the upper part of the center console) is switched on, a voltage signal from the GEM is routed to ground. When the GEM detects that the hazard switch is switched on, the GEM supplies voltage to all the turn signal lamps in a flashing manner. When operating correctly, the hazard lamps flash approximately 80 times per minute.