Diagnostic Aids
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
A defective fuel level sensor most likely will not set DTC P0462. The sensor has a 500 ohm default resistor that will prevent it from meeting the code setting criteria of this DTC. Look for problems in the wiring and in the inline and harness connectors at the sensor and ECM.