Initial Inspection and Diagnostic Overview

WINDSHIELD WIPER AND WASHER DIAGNOSIS

The windshield wiper and washer are controlled by the Simplified Wiring System (SWS). For trouble-shooting refer to Local interconnect network (LIN), SWS Diagnosis.

NOTE: Even when the ETA CS-ECU has failed, the windshield wiper can work at low speed as fall-safe mode. (Normally the windshield wiper operates when the ignition switch is at the "ACC" position. But, if it enters the fall-safe mode, the wiper can operate only when the ignition switch is at the "ON" position.)