Lighting and Horns: Testing and Inspection

For testing of the Exterior Lighting System, refer to Body Control Module, Testing and Inspection.

For testing of the Interior Lighting System, refer to Body Control Module, Testing and Inspection.

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.