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Home >> Ford >> 2000 >> Excursion 4WD V8-7.3L DSL Turbo VIN F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Accelerator Pedal Position Sensor >> Description and Operation >> Idle Validation Switch
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Idle Validation Switch

IDLE VALIDATION SWITCH
The Idle Validation Switch verifies when the accelerator pedal is in the idle position. This switch protects against in-range failure of the AP sensor.

A PCM detected fault of the Idle Validation Switch will illuminate the Malfunction Indicator Lamp. An inoperative Idle Validation Switch detected by the PCM will only allow the engine to run at idle.
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