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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 942 (Engine Controls And Fuel - 6.6L (LMM) - DTC P154B To DTC P2693) >> DTC P2184 or P2185 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The engine coolant temperature (ECT) sensor 2 is a variable resistor that measures the temperature of the engine coolant. The engine control module (ECM) supplies 5 volts to the ECT 2 signal circuit, and a ground for the ECT 2 low reference circuit.

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