For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 | Verify that the Washers Inoperative complaint is present. Do the washers operate as described in the Description and Operation? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3
3 |

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield washer fluid pump.
3. Connect a test lamp from the windshield washer pump control circuit to a good ground.
4. Turn ON the ignition, with the engine OFF.
5. Press the front washer switch.

Does the test lamp illuminate?

Go to Step 4

Go to Step 8

4 |

1. Connect the test lamp from the rear window washer pump control circuit to a good ground.
2. Turn ON the ignition, with the engine OFF.
3. Press the rear washer switch.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

5 |

1. Connect the test lamp between the windshield washer pump control circuit and the rear window washer pump control circuit at the windshield washer fluid pump.
2. Turn ON the ignition, with the engine OFF.
3. Press the front washer switch.

Does the test lamp illuminate?

Go to Step 9

Go to Step 6

6 |

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield wiper washer switch.
3. With a test lamp connected to battery positive voltage, probe the ground circuit of the harness connector.

Does the test lamp illuminate?

Go to Step 10

Go to Step 11

7 |

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield wiper washer switch.
3. Test the rear window washer pump control circuit for an open or a short to ground.

Did you find and correct the condition?

Go to Step 14

Go to Step 10

8 |

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield wiper washer switch.
3. Test the windshield washer pump control circuit for an open or a short to ground.

Did you find and correct the condition?

Go to Step 14

Go to Step 10

9 | Inspect for poor connections at the windshield washer fluid pump. Did you find and correct the condition? | Go to Step 14 | Go to Step 12
10 | Inspect for poor connections at the windshield wiper washer switch. Did you find and correct the condition? | Go to Step 14 | Go to Step 13
11 | Repair the ground circuit for an open or a high resistance. Did you complete the repair? | Go to Step 14 | --
12 | Replace the windshield washer fluid pump. Did you complete the replacement? | Go to Step 14 | --
13 | Replace the windshield wiper washer switch. Did you complete the replacement? | Go to Step 14 | --
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2