Initial Inspection and Diagnostic Overview
WINDSHIELD WIPER AND WASHER DIAGNOSISThe windshield wiper and washer are controlled by the Simplified Wiring System (SWS). For troubleshooting, refer to Chassis Electrical, SWS Diagnosis.
NOTE: Even when the ETACS-ECU has failed, the windshield wiper can work at low speed as fail-safe mode. (Normally, the windshield wiper operates when the ignition switch is at the "ACC" position. But, if it enters the fail-safe mode, the wiper can operate only when the ignition switch is at the "ON" position.)