Title: Test reverse lights and warning device circuit switches, bulbs/LEDs, sockets, horns, buzzers, connectors, terminals, wires, and control components/modules.
Course: Diesel Equipment Technology II (20107-II) > Section: Electrical/Electronic Systems: Servicing the Lighting Systems

Testing should include

- checking for the proper function of reverse light bulbs, including cracked, broken, or hazy lenses, lights that will not hold adjustment, and dull reflectors
- checking for the proper function of bulbs and warning devices
- testing related components
- referring to service materials and manufacturer guidelines.

Process/Skill Questions:

- What is the purpose of a warning device horn or buzzer when in reverse?
- What condition might cause a reverse light to not come on?