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Circuit/System Description The primary fuel level sender and the secondary fuel level sender changes resistance based on fuel Conditions for Running the DTC The ignition is ON, with the engine running. The system voltage is between 11-18 volts. Conditions for Setting the DTC The secondary sender output is less than 0.5 volt. The above condition is present for greater than 30 seconds. Action Taken When the DTC Sets The fuel gage defaults to empty. The low fuel indicator illuminates. The ECM records the operating conditions at the time that the diagnostic test fails. The Conditions for Clearing the DTC Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance Fuel Level Sensor Signal P2067 1 P2068 P2068 P2066 Fuel Level Sensor Low - 1 P2068 P2068 P2066 1. Fuel Gage Inaccurate or Inoperative
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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