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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1332 (Engine Controls - Diagnostic Methods -- 6.0L (99P F450/550) Diesel) >> Quick Test Description >> Key On Engine Off (KOEO) On-Demand Self-Test

Key On Engine Off (KOEO) On-Demand Self-Test

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The KOEO on-demand self-test is an on-demand functional test of the PCM carried out with the key on and the engine off. This test checks that all inputs and outputs (circuits, sensors, regulators, relays, and solenoids) connected to the PCM are electrically operating without fault.

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