Washer Switch Input Signal Check

With ignition switch in ACC position, check voltage between BCM terminals No. 26 and 29. See 3+Figure. With washer switch in OFF position, meter should read battery voltage. With washer switch in ON position, reading should be zero volts. If readings are not correct, check wiper/washer switch continuity. See the WIPER/WASHER SWITCH CONTINUITY table under WIPER/WASHER SWITCH . If continuity is not present, replace washer switch. If continuity is present, check harness continuity between BCM and washer switch. If continuity is not present, repair harness. If continuity is present, go to WIPER AMPLIFIER OUTPUT SIGNAL CHECK.