For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Schematic Reference: Wiper/Washer Schematics DEFINITION: Delay and Mist are inoperative, wipers may not park, and low speed wipers may be inoperative.
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. Turn the windshield wiper/washer switch through all the switch positions.

Does the windshield wiper/washer system operate normal?

--

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

Go to Step 3

3 |

1. Turn the ignition on.
2. Turn the windshield wiper switch to the low speed position.

Do the windshield wipers operate at low speed?

--

Go to Step 4

Go to Step 11

4 | Turn the windshield wiper switch to the off position. Do the windshield wipers park? | -- | Go to Step 5 | Go to Step 9
5 |

1. Remove the WIPER fuse 9.
2. Remove the windshield wiper motor relay K8.
3. Test the resistance from the wiper switch supply circuit terminal in the fuse block to the interval switch signal circuit terminal in the relay connector.
4. Turn the windshield wiper switch to the delay position.
5. Rotate the interval switch through the full range.

Is the resistance within the specified values?

0.68K-5K ohms

Go to Step 15

Go to Step 6

6 |

1. Disconnect the interval switch connector.
2. Test the resistance through the interval switch.

Is the resistance within the specified values?

0.68K-5K ohms

Go to Step 7

Go to Step 16

7 | Test and repair the interval switch signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 8
8 | Test and repair the delay switch signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 16
9 |

1. Remove the windshield wiper motor relay K8.
2. Disconnect the windshield wiper motor connector.
3. Test the resistance from the windshield wiper motor relay connector terminal 2 to the low speed supply circuit terminal in the windshield wiper motor connector.
4. Turn the windshield wiper switch to the off position.

Is the resistance within the specified values?

0-2 ohms

Go to Step 13

Go to Step 10

10 | Test and repair the windshield wiper motor relay function supply circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 16
11 |

1. Disconnect the windshield wiper motor connector.
2. Connect a test lamp from the windshield wiper motor low speed supply circuit terminal to ground.
3. Turn the ignition on.
4. Turn the windshield wiper switch to the low speed position.

Does the test lamp illuminate?

--

Go to Step 17

Go to Step 12

12 | Test and repair the windshield wiper motor low speed supply circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 16
13 | Test and repair the windshield wiper motor relay ignition voltage supply circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 14
14 | Test and repair the windshield wiper motor relay ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 15
15 | Replace windshield wiper motor relay K8. Is the repair complete? | -- | Go to Step 18 | --
16 | Replace the windshield wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement - On Vehicle in Steering Wheel and Column-Tilt. Is the repair complete? | -- | Go to Step 18 | --
17 | Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement . Is the repair complete? | -- | Go to Step 18 | --
18 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3