For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Activate the windshield washer switch. 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, test the voltage at the windshield wiper switch connector terminal A4.

Is the voltage equal to the specified value?

11-14 V

Go to Step 8

Go to Step 3

3 | Replace the wiper switch. Refer to Windshield Wiper and Washer Switch Replacement . Is the repair complete? | -- | System OK | --
4 | Check the windshield washer fluid reservoir. Is there washer fluid in the fluid reservoir? | -- | Go to Step 6 | Go to Step 5
5 | Fill the windshield washer fluid reservoir. Is the repair complete? | -- | System OK | --
6 | Check the windshield washer hoses and the nozzles. Are the windshield washer hoses and 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, test the voltage at the windshield washer pump.

Is the voltage within the specified value?

11-14 V

Go to Step 10

Go to Step 9

9 | Repair an open circuit between the windshield washer pump and the windshield wiper switch. Is the repair complete? | -- | System OK | --
10 | Use an ohmmeter to measure the resistance between ground and the windshield washer pump. Is the resistance equal to the specified value? | 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 | --