For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Do the windshield wipers operate when the washer switch is activated? | -- | Go to Step 4 | Go to Step 2
2 |

1. Turn the ignition ON.
2. While activating the washer switch, use a voltmeter to test for battery voltage at the windshield wiper switch.

Is battery voltage available at the windshield wiper switch connector terminal 4?

11-14 V

Go to Step 8

Go to Step 3

3 | Replace the windshield wiper switch. Refer to Windshield Wiper and Washer Switch Replacement . Is the repair complete? | -- | System OK | --
4 | Is there washer fluid in the windshield washer fluid reservoir? | -- | Go to Step 6 | Go to Step 5
5 | Fill the windshield washer fluid reservoir. Is the repair complete? | -- | System OK | --
6 | Are the windshield washer hoses or the nozzles clogged or damaged? | -- | Go to Step 7 | Go to Step 8
7 | Repair the washer hoses and the nozzles. Is the repair complete? |  | System OK |
8 |

1. Turn the ignition ON.
2. With the windshield washer activated, use a voltmeter to test for battery voltage at the windshield washer pump.

Is battery voltage available at the windshield washer pump?

11-14 V

Go to Step 10

Go to Step 9

9 | Repair the open circuit between the windshield washer pump and the windshield wiper switch. Is the repair complete? | -- | System OK | --
10 | Use an ohmmeter to check the ground circuit at the windshield washer pump. Is the ground circuit OK? | 0 ohms | Go to Step 12 | Go to Step 11
11 | Repair the windshield washer pump ground circuit. Is the repair complete? | -- | System OK | --
12 | Replace the windshield washer pump. Refer to Washer Pump Replacement . Is the repair complete? | -- | System OK | --