DTC B1281, B1282, B1283, B1284: Front Wiper Switch MIST Position Circuit Malfunction; Front Wiper Switch INT Position Circuit Malfunction; Front Wiper Switch LOW Position Circuit Malfunction; Front Wiper Switch HIGH Position Circuit Malfunction

1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Operate each wiper switch position, then turn the wiper/washer switch OFF.
4. Check for DTCs with the HDS.

   Is DTC B1281, B1282, B1283, or B1284 indicated? 

   YES  - Go to step  5.

   NO  - Intermittent failure, the system is OK at this time. Check for loose or poor connections.

5. Select WIPERS from the BODY ELECTRICAL menu, and enter DATA LIST.
6. Check each wiper switch position value with the DATA LIST menu.

   When the wiper switch is OFF: 

   DATA LIST TABLE
   
   

   Data List	Value
   Wiper Switch (LOW)	OFF
   Wiper Switch (HIGH)	OFF
   Wiper Switch (MIST)	OFF
   Wiper Switch (INT)	OFF

   Are all data list values correct? 

   YES  - Go to step  15.

   NO  - Go to step  7.

7. Turn the ignition switch to LOCK (0).
8. Disconnect the wiper/washer switch 8P connector.
9. Turn the ignition switch to ON (II).
10. Select WIPERS from the BODY ELECTRICAL menu.
11. Check each wiper switch position value with the DATA LIST menu.
    DATA LIST TABLE
    
    

    Data List	Value
    Wiper Switch (LOW)	OFF
    Wiper Switch (HIGH)	OFF
    Wiper Switch (MIST)	OFF
    Wiper Switch (INT)	OFF

    Are all data list values correct? 

    YES  - Replace the wiper/washer switch (see WIPER/WASHER SWITCH TEST/REPLACEMENT  ).

    NO  - Go to step  12.

12. Turn the ignition switch to LOCK (0).
13. Disconnect under-dash fuse/relay box connector M (34P).
14. Check for continuity between under-dash fuse/relay box connector M (24P) terminals No. 10, No. 11, and No. 12 and body ground.

    Is there continuity? 

    YES  - Repair short to ground in the wires.

    NO  - Faulty MICU, replace the under-dash fuse/ relay box (see REMOVAL AND INSTALLATION ).

    Fig 1: Checking Continuity Between Under-Dash Fuse/Relay Box Connector M (24P) Terminals 10, 11, 12 & Body Ground

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
15. Check each wiper switch position value with the DATA LIST menu.

    When the wiper switch is ON (LOW): 

    DATA LIST TABLE
    
    

    Data List	Value
    Wiper Switch (LOW)	ON

    When the wiper switch is ON (HIGH): 

    DATA LIST TABLE
    
    

    Data List	Value
    Wiper Switch (HIGH)	ON

    When the wiper switch is MIST: 

    DATA LIST TABLE
    
    

    Data List	Value
    Wiper Switch (MIST)	ON

    When the wiper switch is INT: 

    DATA LIST TABLE
    
    

    Data List	Value
    Wiper Switch (INT)	ON

    Are all data list values correct? 

    YES  - Faulty MICU, replace the under-dash fuse/ relay box (see appropriate REMOVAL AND INSTALLATION procedure ).

    NO  - Go to step  16.

16. Turn the ignition switch to LOCK (0).
17. Do the wiper/washer switch test (see WIPER/WASHER SWITCH TEST/REPLACEMENT  ).

    Is the wiper/washer switch OK? 

    YES  - Go to step  18.

    NO  - Replace the wiper/washer switch (see WIPER/WASHER SWITCH TEST/REPLACEMENT  ).

18. Disconnect under-dash fuse/relay box connectors M (34P) and Q (16P).
19. Check for continuity between under-dash fuse/relay box connector M (34P) terminals and the wiper/washer switch 8P connector terminals as shown:

Fig 2: Checking Continuity Between Under-Dash Fuse/Relay Box Connector M (34P) Terminals & Wiper/Washer Switch 8P Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: Checking Continuity Between Under-Dash Fuse/Relay Box Connector Q (16P) Terminals & Wiper/Washer Switch 8P Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity? 

YES  - Faulty MICU, replace the under-dash fuse/relay box (see appropriate REMOVAL AND INSTALLATION procedure ).

NO  - Repair open in the wires.