Title: Test switchers, bulbs/LEDs, sockets, connectors, terminals, relays, wires, and control components/models of parking, clearance, and taillight circuits.
Course: Diesel Equipment Technology II (20107-II) > Section: Electrical/Electronic Systems: Servicing the Lighting Systems

Testing should include inspection, based on

- manufacturer guidelines
- a description of normal operation
- the interpretation of appropriate wiring diagrams.

ASE 2: V. Electrical/Electronic Systems: F. Instrument Cluster and Driver Information Systems (P-1)

Process/Skill Questions:

- What are common reasons for switch failure?
- What is the difference between a normally-opened and a normally-closed switch?
- What inputs are necessary for parking, clearance, and tail lights to work properly?