For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
Important: The wiper relay is located behind the instrument panel, below the cluster dimmer switch. Remove the cluster dimmer switch and the instrument panel side cover to access the wiper relay.
1 |

1. Turn the ignition ON.
2. Use a voltmeter to test for battery voltage at the wiper relay connector terminal 6.

Is battery voltage available at connector terminal 6?

11-14 V

Go to Step 3

Go to Step 2

2 | Repair the open circuit between the wiper relay connector terminal 6 and fuse F17. Is the repair complete? | -- | System OK | --
3 |

1. Turn the ignition ON.
2. Turn the wiper switch to INT.

Using a voltmeter, is battery voltage available at the wiper relay connector terminal 7?

11-14 V

Go to Step 7

Go to Step 4

4 |

1. Turn the ignition ON.
2. Turn the wiper switch to INT.

Using a voltmeter, is battery voltage available at wiper switch connector terminal 7?

11-14 V

Go to Step 6

Go to Step 5

5 | Replace the wiper switch. Refer to Windshield Wiper and Washer Switch Replacement . Is the repair complete? | -- | System OK | --
6 | Repair the open circuit between the wiper switch connector terminal 7 and the wiper relay connector terminal 7. Is the repair complete? | -- | System OK | --
7 |

1. Turn the ignition ON.
2. Turn the wiper switch to INT.

Using a voltmeter, is battery voltage pulsing at wiper relay connector terminal 5?

11-14 V

Go to Step 11

Go to Step 8

8 | Using an ohmmeter, check the wiper relay ground circuit, connector terminal 6. Is the ground circuit OK? | 0 ohms | Go to Step 10 | Go to Step 9
9 | Repair the open ground circuit. Is the repair complete? | -- | System OK | --
10 | Replace the wiper relay. Is the repair complete? | -- | System OK | --
11 |

1. Disconnect the wiper switch connector.
2. Turn the wiper switch to INT.
3. Using an ohmmeter, check the wiper switch.

Is there continuity between terminals 5 and 6?

0 ohms

Go to Step 13

Go to Step 12

12 | Replace the wiper switch. Refer to Windshield Wiper and Washer Switch Replacement . Is the repair complete? | -- | System OK | --
13 | Repair the open circuit between the wiper switch and the wiper relay. Is the repair complete? | -- | System OK | --