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.
Electrical
...
Horn Test/Replacement
'09-11 models
Remove the front grille cover.
Disconnect the 1P connector (A) from the horn (B).
@font-face{font-family:
"Honda_SymbolMark ...
Recirculation Control Cable Adjustment
Open the glove box. Release the glove box stop on each side, then
let the glove box hang down.
Set the recirculation control lever to FRESH ().
Detach the recirculation ...