Remove the fuel tank unit.
Remove the fuel level sensor (fuel sending unit) (A) from the fuel tank unit (B).

Check these items before installing the fuel tank unit:
When connecting the wire harness, make sure the connection is secure and the connector (C) is firmly locked into place.
When installing the fuel gauge sending unit, make sure the connection is secure. Be careful not to bend or twist it excessively.
Install the parts in the reverse order of removal. When installing the fuel tank unit, align the marks on the unit and the fuel tank.
Malfunction Indicator Lamp
If this indicator comes on while driving, it means one of the engine’s emissions
control systems may have a problem. Even though you may feel no difference in your
vehicle’s performance, it ...
If the Low Oil Pressure Indicator Comes On
■ Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
■ What to do as soon as the indicator comes on
1. Immediately park the vehicle in a safe place.
...
Map Update
INFO button
►Map Update
Update the map database.
When you order a map update, it is mailed to
you on a USB flash drive. ...