DTC P0462 - FUEL LEVEL SENSOR CIRCUIT VOLTAGE LOW GMC Envoy I

Note. For circuit reference, see WIRING DIAGRAMS - 4.3L article.

Circuit Description

Fuel level sensor information is used by VCM to determine volume of fuel in fuel tank. Fuel level affects rate or change in air pressure in EVAP system.

Conditions for setting DTC

1. Fuel tank level slosh test is completed
2. Fuel tank main test is completed.
3. Fuel tank level data valid.
4. Fuel level signal is less than .39 volt for greater than 20 seconds.