Parking and Back-Up Sensor Switch Test/Replacement

Remove the driver's middle panel (see DRIVER'S MIDDLE PANEL REMOVAL/INSTALLATION ).
Disconnect the 17P connector (A) from parking and back-up sensor switch (B).

Fig 1: Identifying Parking And Back-Up Sensor Switch With 17P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check for continuity between the terminals in each switch position according to the table.

Fig 2: Parking And Back-Up Sensor Switch Continuity Chart
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the continuity is not as specified, check the bulb(s) (C). If the bulb(s) are OK, replace the switch.
Install the parts in the reverse order of removal.