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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 679 (Engine Controls And Fuel - 2.2L (L61) - Introduction (2 Of 2)) >> Description and Operation >> Fuel System Description (RPO NT7) >> Fuel Level Sensor

Fuel Level Sensor

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The fuel level sensor consists of a float, a wire float arm, and a ceramic resistor card. The position of the float arm indicates the fuel level. The fuel level sensor contains a variable resistor which changes resistance in correspondence with the position of the float arm. The control module sends the fuel level information via the GMLAN serial data circuit to the body control module (BCM). The instrument panel cluster (IPC) receives a GMLAN message from the BCM. This information is used for the IPC fuel gage and the low fuel warning indicator, if applicable. The control module also monitors the fuel level input for various diagnostics.

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