KOER On-Demand Self-Test

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2005 Ford RV Cutaway, 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

Connect the diagnostic tool. Turn off all accessories. Turn the air conditioning (A/C) off. If the vehicle is equipped with a power take-off (PTO) system or auxiliary idle control, it must be turned off to carry out the self-tests.

NOTE: The engine may run rough during this test.

Carry out the necessary vehicle preparation and visual inspection. Refer to QUICK TEST OPERATION.
Refer to the manufacturer's manual for diagnostic tool instructions.

NOTE: The following steps must be carried out for the powertrain control module (PCM) and transmission control module (TCM).

Select KOER on-demand self-test.
Follow the operating instructions from the menu.
Record the diagnostic trouble codes (DTCs) and follow the appropriate pinpoint test.
After the test, cycle the key to the OFF position before running other tests or driving the vehicle.