Title: Test the electric actuator motors, relays/modules, switches, sensors, wiring, and protection devices.
Course: Diesel Equipment Technology III (20107-III) > Section: Heating, Ventilation, and Air Conditioning: Servicing the Electrical Operating Systems and Related Controls

Testing should include the use of

- OEM wiring diagrams and manuals to perform proper troubleshooting steps
- proper tooling, following troubleshooting steps
- manufacturer software to perform system operational tests.

Process/Skill Questions:

- How does one determine an open switch vs. a closed switch?
- What setting on a multimeter is used to check ohms?
- How is a voltage drop test to a wire performed?