This function is used to temporarily shut off a cylinder and check the injectors' function.
Test conditions:
Engine on.
Transmission in neutral.
Parking brake applied.
Procedure:
Start the function.
Set desired engine rpm and turn off one cylinder at a time by holding in the button. When the test is finished, turn off the engine.
The function is done.
If the function fails, check the test conditions and repair any faults.