For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Wiper/Washer Schematics
1 | Did you review the Wiper/Washer System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Wiper/Washer Systems
2 |

1. Turn the ignition ON.
2. Press the windshield washer switch.

Do the windshield washers operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3 |

1. Disconnect the windshield washer pump connector.
2. Connect a test lamp across the washer pump connector terminals.
3. Turn the ignition ON.
4. Press the windshield washer switch.

Does the test lamp illuminate?

Go to Step 10

Go to Step 4

4 | Test the windshield washer pump ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 5
5 | Test the windshield washer pump control circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 6
6 |

1. Disconnect the windshield wiper motor connector.
2. Connect a test lamp from the windshield wiper switch signal 2 circuit terminal in the wiper motor harness connector to ground.
3. Turn the ignition ON.
4. Press the windshield washer switch.

Does the test lamp illuminate?

Go to Step 12

Go to Step 7

7 | Test the windshield wiper switch signal 2 circuit for high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 8
8 | Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 9
9 | Replace the windshield wiper/washer switch. Is the repair complete? | Go to Step 14 | --
10 | Inspect for poor connections at the windshield washer pump. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 11
11 | Replace the windshield washer pump. Refer to Washer Pump Replacement . Is the repair complete? | Go to Step 14 | --
12 | Inspect for poor connections at the windshield wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13
13 | Replace the windshield wiper motor module. Refer to Wiper Motor Cover Replacement . Is the repair complete? | Go to Step 14 | --
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3