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Home >> Chevrolet >> 2002 >> Impala Base, 3.4 E >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.4L >> Diagnostic Tests >> DTC P0201-P0206: Injector Control Circuit >> Circuit Description

Circuit Description

The Powertrain Control Module (PCM) enables the appropriate fuel injector for each cylinder. A voltage is supplied directly to the fuel injectors. The PCM controls each fuel injector by grounding the control circuit via a solid state device called a driver. The PCM monitors the status of each driver. If the PCM detects an incorrect voltage for the commanded state of the driver, a fuel injector control DTC P0201-P0206 sets.