DTC B1281; DTC B1282; DTC B1283; DTC B1284: Front Wiper 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 - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC ChecksBody Electrical Troubleshooting - B-CAN System Diagnosis Test Mode 1 and Test Mode 2 (without the HDS)Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode B - Control Unit Not CommunicatingBody Electrical Troubleshooting - B-CAN System Diagnosis Test Mode C - No DTCs and Output Won't Shut OFFBody Electrical Troubleshooting - B-CAN System Diagnosis Test Mode D - No DTCs and Output Won't Turn ON .
NOTE: Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors.
- 1. Wiper/washers system check:
1. 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):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.
Wiper/washer switch 10P connector 3. 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
Replace the wiper/washer switch .
NO
Go to step 3.
- 3. 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 T (20P) 3. Check for continuity between test points 1 and 2 individually.
Test condition Vehicle OFF (LOCK) mode Wiper/washer switch 10P connector: disconnected
Under-dash fuse/relay box connector T (20P): disconnected
Test point 1 Under-dash fuse/relay box connector T (20P) No. 16 Test point 2 Body ground Test point 1 Under-dash fuse/relay box connector T (20P) No. 17 Test point 2 Body ground Test point 1 Under-dash fuse/relay box connector T (20P) No. 18 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):
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.