Title: Identify the causes of brighter than normal, intermittent, dim, or no headlight and daytime running light (DRL) operations.
Course: Diesel Equipment Technology II (20107-II) > Section: Electrical/Electronic Systems: Servicing the Lighting Systems

Identification should include testing the bulb for

- continuity and correct wattage
- proper voltage source
- proper ground
- proper terminal fit/connection
- resistance in the wiring (voltage drop test).

ASE 1: V. Electrical/Electronic Systems: E. Lighting System (P-1)

Process/Skill Questions:

- What would cause a brighter than normal light?
- How would a loose connection affect the light?
- How would high resistance affect the light?