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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1044 (Engine Controls Diagnosis - 6.6L (Lb7) (DTCS P0237 To P0611)) >> Diagnosis >> DTC P0611 >> Circuit Description

Circuit Description

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

The fuel injection control module (FICM) has the ability to perform internal circuit checks on the FICM microprocessor, status of the monitoring module, and status of the FICM A/D conversion module. If the FICM senses a problem in the FICM circuits, the FICM will send an error message to the engine control module (ECM). If this condition exists, DTC P0611 will set.

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