Fuel Gauge Sender Unit (sub)

Perform the "Fuel Line Safety Procedure" referring to the "BEFORE SERVICE PROCEDURE". (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
If the fuel gauge level indicates 3/4 or more, refer to the "FUEL DRAINING PROCEDURE" and drain the fuel. (See FUEL DRAINING PROCEDURE [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
Remove the Rear seat cushion. (See REAR SEAT CUSHION REMOVAL/INSTALLATION .)
Remove the screws.

Fig 1: Locating Fuel Gauge Sender Unit (SUB) Screw
Courtesy of MAZDA MOTORS CORP.
Remove the service hole cover.
Disconnect the connector.

Fig 2: Disconnecting Fuel Gauge Sender Unit (SUB) Connector
Courtesy of MAZDA MOTORS CORP.
Remove the screws.

Fig 3: Removing Fuel Gauge Sender Unit (SUB) Screw
Courtesy of MAZDA MOTORS CORP.
Remove the fuel gauge sender unit (sub).

Fig 4: Locating Fuel Gauge Sender Unit (SUB)
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.
Perform the fuel leakage inspection referring to "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)