For 1990-2009 cars

## Wipers Inoperative - All Modes With CD4

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

1. Turn the ignition ON.
2. Operate the windshield wiper/washer switch through all the switch positions.

Does the windshield wiper/washer system operate normally?

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

Go to Step 3

3 |

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

Does the test lamp illuminate?

Go to Step 4

Go to Step 6

4 | Connect a test lamp from the windshield wiper motor connector accessory voltage supply circuit terminal to ground. Does the test lamp illuminate? | Go to Step 5 | Go to Step 8
5 | Connect a test lamp from the windshield wiper motor connector accessory voltage supply circuit terminal to the ground circuit terminal. Does the test lamp illuminate? | Go to Step 13 | Go to Step 9
6 | Test the windshield wiper switch signal 1 circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 7
7 | Test the accessory voltage supply circuit to the windshield wiper/washer switch for an open or short to ground. Refer to Circuit Testing or to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 10
8 | Repair the accessory voltage supply circuit for an open or high resistance. Refer to Wiring Repairs or to Connector Repairs in Wiring Systems. Is the repair complete? | Go to Step 15 | --
9 | Repair the windshield wiper motor ground circuit for an open or high resistance. Refer to Wiring Repairs or to Connector Repairs in Wiring Systems. Is the repair complete? | Go to Step 15 | --
10 | Test the windshield wiper motor high speed circuit for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 11
11 | Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 12
12 | Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column. Is the repair complete? | Go to Step 15 | --
13 | Inspect for poor connections at the windshield wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 14
14 | Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement . Is the repair complete? | Go to Step 15 | --
15 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3

## Wipers Inoperative - All Modes Without CD4

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. Operate the windshield wiper/washer switch through all the switch positions.

Does the windshield wiper/washer system operate normally?

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

Go to Step 3

3 |

1. Disconnect the windshield wiper motor connector.
2. Connect a test lamp from the windshield wiper motor high speed circuit terminal to ground.
3. Turn the ignition ON.
4. Operate the windshield wiper/washer switch to the HI position.

Does the test lamp illuminate?

Go to Step 4

Go to Step 6

4 | Test the windshield wiper motor park switch signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 5
5 | Test the windshield wiper motor 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 12 | Go to Step 8
6 |

1. Disconnect the windshield wiper/washer switch connector.
2. Connect a test lamp from the windshield wiper/washer switch accessory voltage supply circuit terminal to ground.
3. Turn the ignition ON.

Does the test lamp illuminate?

Go to Step 10

Go to Step 7

7 | Repair the windshield wiper/washer switch accessory voltage supply circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 12 | --
8 | 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 12 | Go to Step 9
9 | Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement . Is the repair complete? | Go to Step 12 | --
10 | 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 12 | Go to Step 11
11 | Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column. Is the repair complete? | Go to Step 12 | --
12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3