Component Testing

Windshield Wiper Washer Switch 

1. With the WASH switch in the open position, test for infinite resistance between the ground terminal D and the signal terminal B.
   • If not the specified value, replace the windshield wiper washer switch.
2. With the WASH switch in the closed position, test for less than 2 ohms of resistance between the ground terminal D and the signal terminal B.
   • If greater than the specified range, replace the windshield wiper washer switch.

Washer Pump 

1. Ignition OFF, disconnect the harness connector at the washer pump.
2. Install a 10A fused jumper wire between the control terminal 2 and 12 volts. Install a jumper wire between the ground terminal 1 and ground.
3. Verify the washer pump is activated.
   • If the washer pump does not activate, replace the washer pump.