Fuel Gauge Sender Unit Inspection (2WD)

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For the fuel gauge sender unit removal/installation, refer to the fuel pump removal/installation because the fuel gauge sender unit is integrated with the fuel pump. (See FUEL PUMP UNIT REMOVAL/INSTALLATION .)

Verify that the resistance at fuel gauge sender unit terminals D and C is as indicated in the chart according to the height of the float.

Fig 1: Measuring Resistance At Fuel Gauge Sender Unit Terminals
Courtesy of MAZDA MOTORS CORP.

Fig 2: Fuel Gauge Sender Unit Resistance Graph
Courtesy of MAZDA MOTORS CORP.
- If not as indicated in the chart, replace the fuel gauge sender unit.