Wiper/Washer Circuit

Turn ignition to ACC. Using voltmeter, backprobe TCU connector. Connect positive voltmeter lead to terminal No. 13 and negative lead to terminal No. 15. With wiper/washer lever in ON position, voltage should be zero. With washer in OFF position, battery voltage should exist. Using an ohmmeter, check wiring harness between TCU and washer switch. If continuity exists, replace TCU.