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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (Engine Controls - Diagnostic Subroutines -- 6.0L (99P F450/550) Diesel) >> Performance Diagnostic Procedures >> 4. Carry Out The Key On Engine Off (KOEO) On-Demand Self-Test >> Recommended Procedure:

Recommended Procedure:

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NOTE: To verify that the DTC is a hard fault, first clear continuous DTCs (be sure to record all DTCs and freeze frame information before clearing). Repeat the KOEO on-demand self-test. If the DTC is set again, a hard fault has occurred.

Connect the diagnostic tool. Turn off all accessories. 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-test.