Headlamp and Foglamp Diagnosis

When a vehicle experiences problems with the headlamp system, verify the condition of the battery connections, charging system, headlamp bulbs, wire connectors, relay, high beam dimmer switch and headlamp switch.

Electronic Daytime Running Light
LH vehicles built for use in Canada are equipped with a Daytime Running Lamp (DRL) system. The DRL system operates the headlamps at 50% power with the headlamp switch OFF and the engine running. The DRL system is controlled by the Daytime Running Lamp Module located on radiator closure panel on the right side of the engine compartment. The DRL module overrides the headlamp switch when the headlamps are turned OFF The headlamps operate normally when the headlamps are turned ON.

Headlamp Switch
The headlamp switch is located on the upper left side of the instrument panel.

High-Beam Headlamp Dimmer Switch
The high beam headlamp dimmer is part of the multi-function switch located on the steering column.