Testing Summit L4-1468cc 15L SOHC (1989) Windshield Washer Switch
Windshield Washer Switch: Testing and Inspection
Rear Wiper & Washer Switch Test
Fig. 35 Rear Wiper/Washer Continuity Chart
1. Disconnect wiper/washer switch electrical connector.
2. Check continuity between terminals.
3. If continuity is not as specified, replace switch.