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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Engine Controls Self-Diagnostics - 6.5L) >> Diagnostic Tests >> DTC P0220: Accelerator Position Sensor 2 Circuit >> Diagnostic Aids

Diagnostic Aids

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There are no driveability issues associated with the APP module unless a DTC is present. The most likely causes of this DTC are faulty connections or the sensor itself. The least likely cause is a PCM condition.

All 5-volt reference circuits must be checked for a proper reference voltage. Voltmeter accuracy is important.

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