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Home >> Pontiac >> 2003 >> Grand Prix GTP >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel, Gages, And Console >> Diagnostic Information and Procedures >> DTC P0656: Pcm >> Circuit Description

Circuit Description

The PCM controls the fuel gage based on the fuel level signal. DTC P0656 will set when the PCM detects an improper voltage on the fuel gage signal circuit.

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