Title: Test the brake pressure differential valve and warning light circuit switch, bulbs or light-emitting diodes (LEDs) wiring, and connectors.
Course: Diesel Equipment Technology I (20107-I) > Section: Brakes: Servicing Hydraulic Brakes

Testing should include assessing whether the brake light circuit works as designed.

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

Process/Skill Questions:

- What is the diagnosis procedure if the warning light does not operate as designed?
- What happens if the brake pressure differential valve is damaged?