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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1170 (Engine Controls Diagnosis - 6.0L - Alternative Fuels (DTC P0005-DTC P2665)) >> Diagnosis >> DTC P0611: Fuel Injector Control Module Performance >> Description

DTC P0611: Fuel Injector Control Module Performance : Description

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The fuel injector control module (FICM) monitors the compressed natural gas (CNG) fuel tank pressure (FTP) sensor voltage, the fuel tank temperature (FTT) sensor voltage, and the fuel rail temperature (FRT) sensor voltage. The FTP, FTT, and FRT sensor values, and diagnostic data, is communicated to the powertrain control module (PCM) by 2 pulse width modulated (PWM) circuits. This DTC sets when the PCM does not receive any PWM signals from the FICM.

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