Lighting and Horns: Description and Operation

LAMP SYSTEMS
Each vehicle is equipped with various lamp assemblies. A good ground is necessary for proper lighting operation. Grounding is provided through a separate ground wire.

HEADLAMPS
Headlamps on the Wrangler are sealed beam units. Each unit contains a high and low beam.

The headlamps are controlled by the headlamp switch and the multifunction switch. Each headlamp unit can be serviced individually.

HEADLAMP SWITCH
The headlamp switch is located on the instrument panel. The headlamp switch controls the parking lamps, the headlamps, the interior lamps, and instrument cluster illumination. The headlamp switch also contains a rheostat for controlling the illumination level of the instrument cluster lamps.

The headlamp switch has an OFF position, a parking lamp position, and a headlamp ON position. High beams are controlled by the multifunction switch on the steering column. The headlamp switch cannot be repaired, it must be replaced.

TAIL/TURN SIGNAL/STOP/BACK-UP LAMP
The rear tail lamp modules are mounted on rear of the vehicle, outboard of the tailgate. Each module contains two bulbs, a lens, and a housing. One bulb is a two filament bulb used for tail, stop, and turn signal functions. The other bulb is a single filament bulb used for back-up light illumination.

Each tail lamp module can be serviced separately. Each bulb can also be serviced separately. The headlamp switch controls tail lamp operation. The multifunction switch controls turn signal operation, and the back-up light switch controls the back-up light operation. The brake lamp switch controls the stop lamp function.

FRONT TURN SIGNAL/PARKING LAMP
The front turn signal/parking lamp is a separate module. Each module contains a housing, a lens, and bulb. The components are serviceable separately.

The parking light function is controlled by the headlamp switch located on the instrument panel. The turn signal function is controlled by the multi-function switch located on the steering column. Each front turn signal/parking lamp module can be serviced separately.

CHMSL LAMP (CENTER HIGH MOUNTED STOP LAMP)
The center high mounted stop lamp (CHMSL) is mounted on a bracket above the spare tire carrier.

CHMSL operation is controlled by the brake lamp switch through button contacts on the tailgate hinge.

DAYTIME RUNNING LAMPS
The Daytime Running Lights (Headlamps) System is installed on vehicles manufactured for sale in Canada only. A separate module, mounted on the cowl, controls the DRL.

The headlamps are illuminated when the engine is running and the parking brake is OFF. The lamps are illuminated at less than normal intensity.