Diesel Data: Automotive Repair

B1284




DTC Troubleshooting: B1284

DTC B1284:

Windshield Wiper Switch 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 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 in HIGH and wait for at least 2 seconds.

4. Check for DTCs with the HDS.

Is DTC B1284 indicated?

YES -

Replace the windshield wiper/washer switch.�

NO -

Intermittent failure, the windshield wiper/washer switch and the combination switch control unit are OK at this time. Check for loose or poor connections.�