Technician a Says That Most Current Engine Brakes Use the Engine

Multiple Choice

Technician A says that most current engine brakes use the engine ECM to manage braking cycles. Technician B says that modern engine brakes can perform the majority of the braking requirements of a transport truck. Who is right?

A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B