For a truck driver to actuate an electromechanically-managed internal engine compression brake, all of the following switches would have to be closed EXCEPT:

Question

Quizplus · Accepted Answer

The service brake application pressure switch is not required to be closed for the actuation of an electromechanically-managed internal engine compression brake. This system is typically engaged through the driver dash control switch, when the clutch is engaged (to ensure the vehicle is in gear), and when the accelerator or fuel control is not being applied, indicating the driver's intention to slow down without using the service brakes.

For a Truck Driver to Actuate an Electromechanically-Managed Internal Engine