B1076

DTC Troubleshooting: B1076

DTC B1076:

Windshield Wiper Switch Back-up Circuit Malfunction

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 windshield wiper switch ON for 5 seconds and OFF.

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. Select WIPER from the BODY ELECTRICAL SYSTEM SELECT menu, and enter DATA LIST.

6. Check the ON/OFF information of the Windshield wiper switch (BACK-UP) with the HDS.

Is OFF indicated?

YES -

Go to step 7.

NO -

Check for a short in the wire between the combination switch control unit and the relay control module (BACK-UP WIPER line), if the harness is OK, replace the combination switch control unit Service and Repair.

7. Turn the windshield wiper switch ON.

8. Check the ON/OFF information of the Windshield wiper switch (BACK-UP) with the HDS.

Is ON indicated?

YES -

Go to the relay control module input test Testing and Inspection and check for a poor ground, if the GND line is OK, replace the under-hood fuse/relay box Under-Hood Fuse/Relay Box Removal and Installation.

NO -

Check for an open in the wire between the combination switch control unit and the relay control module (BACK-UP WIPER line), if the wire is OK, replace the combination switch control unit Service and Repair.