Wrangler L4-150 2.5L VIN E TBI (1990)
Wiper Switch: Testing and Inspection
Front Wiper/Washer Switch Test
1. Remove Wipe/Wash switch, then reconnect below instrument panel. Back probe switch connector, with ignition switch in the ACCY position.
2. Using a voltmeter, test switch connector terminal B.
3. If battery voltage is not indicated, replace switch.
4. Test switch connector terminal A, with switch in the Wash position.
5. If battery voltage is indicated, repair open to washer pump terminal B.
6. If battery voltage is not indicated, repair open to ACCY fuse.
7. Test switch connector terminal C, with the switch in the Wash position.
8. If battery voltage is indicated, repair open to wiper motor terminal C.
9. If battery voltage is not indicated, replace switch.
