NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS at end of article.

Ensure washer fluid lines and nozzles are not damaged or restricted. Repair as necessary. Disconnect windshield washer pump connector. With DRB-II in ohmmeter mode, check resistance on windshield washer pump connector ground circuit (Black wire). If resistance is more than 5 ohms, repair open circuit in Black wire. Perform VERIFICATION PROCEDURE VER-1.
If resistance is less than 5 ohms, press and hold windshield washer button on end of wiper/washer stalk. With DRB-II in voltmeter mode, check voltage on windshield washer pump connector washer pump control circuit (Brown wire). If voltage is less than 10 volts, repair open circuit in Brown wire between wiper/washer switch and windshield washer pump connector. Perform VERIFICATION PROCEDURE VER-1. If voltage is more than 10 volts, replace windshield washer pump. Perform VERIFICATION PROCEDURE VER-1.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Test 34B - Washer Pump Controls