Note. Fuel level unit may also be referred to as fuel level sensor or fuel level sending unit. Fuel level unit no change over miles is monitored when engine is running and fuel level is either less than 15 percent of fuel tank capacity or more than 85 percent of fuel tank capacity. DTC may be stored in Powertrain Control Module (PCM) when PCM senses low fuel for more than 120 miles or fuel level does not change by at least 4 percent within 250 miles. Possible causes are: defective fuel level sensor, damaged or obstructed fuel tank.
Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Remove fuel tank. Remove fuel pump module from fuel tank. Fuel pump module is located on top of fuel tank and contains fuel level sensor, fuel pump and fuel supply line fitting. Fuel pump module may also be referred to as fuel tank module. Inspect fuel tank for damage or obstructions which would cause problems with operation of fuel level sensor. If fuel tank is not damaged or obstructed, replace fuel level sensor. Perform TEST VER-2 . If fuel tank is damaged or obstructed, repair or replace fuel tank as necessary. Perform TEST VER-2 .