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Home >> GMC >> 2000 >> C3500 HD 7.4 J, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System Self-Diagnostics - Diesel) >> Diagnostic Tests >> DTC P0220: Accelerator Pedal Position Sensor 2 Circuit >> Circuit Description
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Circuit Description

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

Accelerator Pedal Position (APP) module provides a voltage signal that changes relative to accelerator pedal position. Three sensors are located within APP module and are scaled differently.

DTC will set when reference voltage on APP 2 sensor is less than 4.8 volts for 2 seconds.