Checking floats and wiring

Check that the floats for the fuel levels sensors have not stuck.

Check the cable inside the fuel tank between the two sensors. Check for a short-circuit to supply voltage. Check for a short-circuit to ground. Check for an open-circuit.

Remedy as necessary.

Other information: 

• For further information about signals and other values, see Signal specification
• To access or replace the fuel level sensor (left-hand side), see Level sensor, fuel tank/fuel pump, replacement
• To access or replace the fuel level sensor (right-hand side), see Level sensor, fuel tank/fuel pump, replacement
• See Checking wiring and terminals .

Fig 1: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Floats, Fuel Level Sensors, And Wiring

Courtesy of VOLVO CARS OF NORTH AMERICA.