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Home >> GMC >> 1995 >> Forward Control 4.3 Z, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 6.5L Diesel. >> Diagnostic Trouble Code Charts >> DTC 84, Accelerator Pedal Position (App) Circuit Fault >> Diagnostic Aids
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Diagnostic Aids

Check for faulty connections at APP module, PCM and instrument cluster connector.

Fig 1: DTC 84 Schematic ("G" Series) Accelerator Pedal Position (APP) Circuit Fault
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Fig 2: DTC 84 Schematic ("P" Series) Accelerator Pedal Position (APP) Circuit Fault
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Fig 3: DTC 84 Flow Chart (All Models) Accelerator Pedal Position (APP) Circuit Fault
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