Fuel Gauge Sender Unit Inspection [Except AWD]

Move the float to the topmost and bottommost positions, and verify that the resistance between terminals A and B of the unit and the position of the float are as indicated in the figure.
- If they are not as indicated, replace the fuel gauge sender unit.
  
  Fig 1: Identifying Topmost And Bottommost Positions Of Float (Fuel Gauge Sender Unit - Except AWD)
  Courtesy of MAZDA MOTORS CORP.