Headlight Washer Switch Test/Replacement

Remove the driver's outer dashboard trim (see DRIVER'S OUTER DASHBOARD TRIM REMOVAL/INSTALLATION ).
Remove the multi switch (A), and disconnect the connectors (B).

Fig 1: Locating Multi Switch And Connectors
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check for continuity between the terminals in each switch position according to the table.
NOTE:
- Make sure the correct test lead (+ or -) is placed on the terminal.
- When checking for continuity across the diode, use the diode setting (→-) on the digital volt/ohm meter to check the diode bias.
- Note this important operating characteristic; diode bias causes a diode to fully conduct electricity in one direction (forward), while not at all in the opposite direction (reverse).
  
  Fig 2: Terminals Continuity Chart
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the continuity is not as specified, remove the power mirror switch (A), and replace the multi switch (B).

Fig 3: Locating Power Mirror Switch And Multi Switch
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the switch in the reverse order of removal.