Recommended Procedure

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The engine runs rough during this test.

Connect the scan tool. 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 the self-test.

Carry out the necessary vehicle preparation and visual inspection. Refer toQUICK TEST OPERATION .
Refer to the scan tool operating article for instructions.
Key ON, engine running.
Follow the operating instructions from the diagnostic menu.
Carry out a KOER On Demand Self-Test.
Record the DTCs and refer to the appropriate pinpoint test.