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Home >> Ford >> 2003 >> Excursion 6.0 P, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (ENGINE CONTROLS - SELF-DIAGNOSTICS - 7.3L (995, 996 F650/750, 99F E Series & 99F F450/550) DIESEL) >> Quick Test >> KOER Switch Self-Test >> Description

KOER Switch Self-Test: Description

WARNING: This page is about a different variant/trim than selected.

KOER SWITCH SELF-TEST is a functional test of PCM performed on demand with engine running. This test is designed to set DTCs if test does not detect a transition on one or more switches. After pressing "Trigger" to start test, wait 5 seconds before running through driver-operated controls to eliminate chance of setting a false Idle Validation Switch (IVS) DTC. Accelerator pedal must first be pressed and released to begin test, then parking brake, speed control (cruise control) ON, OFF, SET, RESUME, COAST, Transmission Control Switch (TCS) or Clutch Pedal Position (CPP) switch must be operated. The last component to be pressed and released must be the brake pedal, which will test both Brake Pressure Applied (BPA) switch and Brake ON/OFF (BOO) switch.