DTC Troubleshooting: B1281, B1282, B1283, B1284
DTC B1281: Front wiper MIST position circuit malfunction
DTC B1282: Front wiper INT (AUTO) position circuit malfunction
DTC B1283: Front wiper LOW position circuit malfunction
DTC B1284: Front wiper HIGH position circuit malfunction
DTC Description
DTC
B1281 Front wiper MIST position circuit malfunction
  
B1282 Front wiper INT (AUTO) position circuit malfunction
  
B1283 Front wiper LOW position circuit malfunction
  
B1284 Front wiper HIGH position circuit malfunction
  

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1.
Wiper/washers system check:

Wiper/washers system check
?1.
Turn the vehicle to the ON mode.

?2.
Turn the windshield wiper switch to the OFF position, check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
OFF
      
Windshield Wiper Switch (HIGH)
OFF
      
Windshield Wiper Switch (INT)
OFF
      
Windshield Wiper Switch (MIST)
OFF
      

Are all data list values correct?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Go to step 2.
2.
Determine possible failure area (windshield wiper/washer switch, others):

Determine possible failure area (windshield wiper/washer switch, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Windshield wiper/washer switch 10P connector

?3.
Turn the vehicle to the ON mode.

?4.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
OFF
      
Windshield Wiper Switch (HIGH)
OFF
      
Windshield Wiper Switch (INT)
OFF
      
Windshield Wiper Switch (MIST)
OFF
      

Has the data list value changed from ON to OFF?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
Shorted wire check (FR WIPER INT&LO SW, FR WIPER HI&LO SW, FR WIPER MIST SW lines):

Shorted wire check (FR WIPER INT&LO SW, FR WIPER HI&LO SW, FR WIPER MIST SW lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Under-dash fuse/relay box connector B (20P)

?3.
Check for continuity between test points 1 and 2 individually.
Test condition
Vehicle OFF (LOCK) mode
Windshield wiper/washer switch 10P connector: disconnected
Under-dash fuse/relay box connector B (20P): disconnected
Test point 1
Under-dash fuse/relay box connector B (20P) No. 8
Test point 2
Body ground

Test point 1
Under-dash fuse/relay box connector B (20P) No. 16
Test point 2
Body ground

Test point 1
Under-dash fuse/relay box connector B (20P) No. 15
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The FR WIPER INT&LO SW, FR WIPER HI&LO SW, and FR WIPER MIST SW wires are OK. Faulty MICU; replace the under-dash fuse/relay box.?
4.
Shorted wire check (FR WIPER MIST SW to FR WIPER HI&LO SW, FR WIPER HI&LO SW to FR WIPER INT&LO SW, FR WIPER MIST SW to FR WIPER INT&LO SW lines):

Shorted wire check (FR WIPER MIST SW to FR WIPER HI&LO SW, FR WIPER HI&LO SW to FR WIPER INT&LO SW, FR WIPER MIST SW to FR WIPER INT&LO SW lines)
?1.
Check the parameter(s) below with the HDS.
When the windshield wiper switch is turned to HI
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
OFF
      
Windshield Wiper Switch (HIGH)
ON
      
Windshield Wiper Switch (INT)
OFF
      
Windshield Wiper Switch (MIST)
OFF
      

When the windshield wiper switch is turned to LO
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
ON
      
Windshield Wiper Switch (HIGH)
OFF
      
Windshield Wiper Switch (INT)
ON
      
Windshield Wiper Switch (MIST)
OFF
      

When the windshield wiper switch is turned to INT
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
OFF
      
Windshield Wiper Switch (HIGH)
OFF
      
Windshield Wiper Switch (INT)
ON
      
Windshield Wiper Switch (MIST)
OFF
      

When the windshield wiper switch is turned OFF
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
OFF
      
Windshield Wiper Switch (HIGH)
OFF
      
Windshield Wiper Switch (INT)
OFF
      
Windshield Wiper Switch (MIST)
OFF
      

When the windshield wiper switch is turned to MIST
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Windshield Wiper Switch (LOW)
OFF
      
Windshield Wiper Switch (HIGH)
OFF
      
Windshield Wiper Switch (INT)
OFF
      
Windshield Wiper Switch (MIST)
ON
      

Are all data list values correct?

     
YES
     
     
     
The FR WIPER MIST SW to FR WIPER HI&LO SW, FR WIPER HI&LO SW to FR WIPER INT&LO SW, and FR WIPER MIST SW to FR WIPER INT&LO SW wires are OK. Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
     
NO
     
     
     
Repair a short between the wires.?