B1076

DTC Troubleshooting: B1076

DTC B1076:

Windshield Wiper Signal Error

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

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Turn the wiper switch to INT, LOW, then HIGH for at least 2 seconds each.

4. Check for DTCs with the HDS.

Is DTC B1076 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.�

5. With the wiper/washer switch OFF, select WINDSHIELD WIPERS from the BODY ELECTRICAL SYSTEM SELECT menu, and enter DATA LIST.

6. Check the ON/OFF information of the WINDSHIELD WIPER SWITCH (BACK-UP) in the DATA LIST.

Is the information indicator OFF?

YES -

Go to step 7.

NO -

Go to step 11.

7. Turn the wiper switch ON (low or high).

8. Check the ON/OFF information of the WINDSHIELD WIPER SWITCH (BACK-UP) in the DATA LIST.

Is the information indicator ON?

YES -

Faulty relay control module; replace the under-hood fuse/relay box Under-Hood Fuse/Relay Box Removal and Installation.�

NO -

Go to step 9.

9. Disconnect under-hood fuse/relay box connector J (10P) and the combination switch 12P connector.

10. Check for continuity between under-hood fuse/relay box connector J (10P) terminal No. 6 and combination switch (combination switch control unit) 12P connector terminal No. 11.





Is there continuity?

YES -

Faulty combination switch control unit; replace the combination switch Service and Repair.�

NO -

Repair an open or high resistance in the wire.�

11. Disconnect under-hood fuse/relay box connector J (10P).

12. Check for continuity between under-hood fuse/relay box connector J (10P) terminal No. 6 and body ground.





Is there continuity?

YES -

Go to step 13.

NO -

Faulty relay control module; replace the under-hood fuse/relay box Under-Hood Fuse/Relay Box Removal and Installation.�

13. Disconnect the combination switch 12P connector.

14. Check for continuity between under-hood fuse/relay box connector J (10P) terminal No. 6 and body ground.





Is there continuity?

YES -

Repair a short in the wire.�

NO -

The combination switch control unit is faulty; replace the combination switch Service and Repair.�