DTC Troubleshooting: B1283

DTC B1283: Windshield Wiper Switch LOW Position Circuit Malfunction Clear the DTCs using the HDS. Cycle the ignition switch to OFF, and then back ON. Turn the windshield wiper switch to LOW position for 2 seconds. Check the DTCs by selecting the DTCs MENU from the HDS. Is DTC B1283 indicated?
YES | - | Go to Step 5 .
NO | - | Intermittent failure, the windshield wiper/washer switch and the combination switch control unit (LHD type) are OK at this time.■
Ignition switch OFF. Disconnect the wiper/washer switch 12P connector. Turn the windshield wiper switch in LOW position. Check for continuity between the wiper/washer switch 12P connector No. 4 and No.12 connector. Is there continuity?
YES | - | Replace the combination control unit .■
NO | - | Replace the wiper/washer switch .■