Key ON Engine OFF (KOEO) Injector Electrical Self-Test

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2019 Ford Transit-350 HD, 2019 Ford Transit-350, 2019 Ford Transit-250, 2019 Ford Transit-150, and 2019 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

The KOEO injector electrical self-test is a functional test of the PCM carried out with the ignition ON and the engine OFF. This test determines if the injectors and circuits are correctly operating. If a concern is detected by the PCM, the corresponding DTCs are displayed at the end of the self-test.

Turn off all accessories. If the vehicle is equipped with a PTO system or auxiliary idle control, it must be turned off to carry out self-tests.
Carry out the necessary vehicle preparation and a visual inspection. Refer to QUICK TEST DESCRIPTION
Refer to the scan tool manufacturers manual for instructions.
Ignition ON, engine OFF.
Carry out the KOEO injector electrical self-test.
Ignition in OFF position.
Record the DTCs and carry out the appropriate pinpoint test.