Headlamp: Testing and Inspection

Headlamp Diagnosis (Part 1 Of 3):

Headlamp Diagnosis (Part 2 Of 3):

Headlamp Diagnosis (Part 3 Of 3):

Headlamp Diagnosis
A good ground is necessary for proper lighting operation. Grounding is provided by the lamp socket when it comes in contact with the metal body, or through a separate ground wire.

Always begin any diagnosis by testing all of the fuses and circuit breakers in the system. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.