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Home >> Chevrolet >> 2004 >> Epica LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.5L (LBK) - DTC P0404 To DTC P1174 >> DTC P0656 >> Circuit Description

Circuit Description

The engine control module (ECM) creates the fuel gage output signal by pulsing the circuit to ground. The ECM monitors the voltage on the fuel gage output circuit. If the ECM determines that the voltage is out of the normal operating range, a DTC sets.

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