Wiper/Washer Switch Test/Replacement

Remove the steering column covers (see STEERING COLUMN REMOVAL AND INSTALLATION ).
Disconnect the 14P connector (A) from the wiper/washer switch (B).

Fig 1: Disconnecting 14P Connector From Wiper/Washer Switch
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the two screws, then pull out the switch.
Check for continuity between the terminals in each switch position according to the table. If the continuity is not as specified, replace the switch.
Windshield Wiper/Washer Switch:

Fig 2: Windshield Wiper/Washer Switch Position Reference Table
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Rear Window Wiper/Washer Switch:

Fig 3: Rear Window Wiper/Washer Switch Position Reference Table
Courtesy of AMERICAN HONDA MOTOR CO., INC.