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Home >> Pontiac >> 2000 >> Firebird Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System Self-Diagnostics - 5.7L) >> Diagnostic Tests >> DTC P0704: Clutch Switch Circuit >> Circuit Description
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Circuit Description

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

Clutch switch is a normally closed switch. With clutch pedal released (circuit closed), PCM senses low voltage. With clutch pedal depressed (circuit open), PCM senses high voltage. This diagnostic determines if clutch switch has failed by monitoring voltage transitions on clutch switch circuit.

DTC will set when there is no VSS DTCs set and vehicle speed changes from zero MPH to greater than 24 MPH and back to zero MPH for 2 seconds without PCM detecting a voltage transition on clutch switch circuit. This must occur 7 times before diagnostic will report a fault.

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