For 1990-2009 cars

Caution: When using an external power source to provide power to a component or circuit, always use a fused jumper wire with the proper amp rating for the component or circuit being tested. Failure to use a fused jumper wire may result in accidental overload and may cause personal injury or damage to the component or circuit.

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 |

1. Turn on the ignition, with the engine OFF.
2. Make sure that the window lock position has not been selected on the power window main switch.

Is either rear power window working?

--

Go to Step 18

Go to Step 2

2 | Visually inspect the connection at the power window main switch. Is the electrical connector correctly attached to the switch? | -- | Go to Step 4 | Go to Step 3
3 | Correctly attach the electrical connector to the power window main switch. Is the repair complete? | -- | System OK | --
4 |

1. Disconnect the electrical connector from the power window main switch.
2. Turn on the ignition, with the engine OFF.
3. Inspect the voltage at terminal 13 of the power window main switch connector.

Is the voltage equal to the specified value?

11-14 V

Go to Step 16

Go to Step 5

5 | Inspect fuses F18 and EF1. Is either fuse open? | -- | Go to Step 6 | Go to Step 7
6 |

1. Check for a short circuit and repair if necessary.
2. Replace the open fuses.

Is the repair complete?

--

System OK

--

7 |

1. Turn on the ignition, with the engine OFF.
2. Inspect the voltages at fuses F18 and EF1.

Are both voltages equal to the specified value?

11-14 V

Go to Step 9

Go to Step 8

8 | Repair the power supply to the fuse which did not indicate battery voltage with the ignition ON. Is the repair complete? | -- | System OK | --
9 |

1. Turn on the ignition, with the engine OFF.
2. Remove the power window relay.
3. Inspect the voltage at terminal 30 and terminal 85 of the power window relay socket. Terminals of the relay socket can be identified by the markings on the bottom of the relay.

Does the voltmeter indicate the specified value?

11-14 V

Go to Step 11

Go to Step 10

10 | Repair the open circuit between the fuses and the power window relay. Is the repair complete? | -- | System OK | --
11 | With the power window relay still removed, use an ohmmeter to check the resistance between ground and terminal 86 of the power window relay socket. Does the ohmmeter indicate the specified value? | 0 ohms | Go to Step 13 | Go to Step 12
12 | Repair the open circuit between ground and terminal 86 of the power window relay socket. Is the repair complete? | -- | System OK | --
13 |

1. Temporarily substitute a known good relay in place of the power window relay.
2. Attempt to operate the power windows.

Do the power windows operate with the substituted relay?

--

Go to Step 14

Go to Step 15

14 |

1. Return the substituted relay to its original position.
2. Replace the original power window relay.

Is the repair complete?

--

System OK

--

15 | Repair the open circuit between the power window relay socket terminal 87 and the power window switch terminal 13. Is the repair complete? | -- | System OK | --
16 | With the power window main switch disconnected, use an ohmmeter to check the resistance between ground and terminal 8 of the power window main switch connector. Is the resistance equal to the specified value? | 0 ohms | Go to Step 18 | Go to Step 17
17 | Repair the open circuit between ground and terminal 8 of the power window switch connector. Is the repair complete? | -- | System OK | --
18 |

1. Remove the trim panel from the rear door which has an inoperative power window.
2. Move a vehicle battery close enough to the door so that the window motor can be powered directly from the battery with jumper wires.
3. Disconnect the 2-pin window motor connector in the door.

Important: To prevent the fuse in the jumper wire from blowing, do not touch the jumper wires together.

4. Attach a jumper wire between the negative battery terminal and one of the terminals in the 2-pin window motor connector.
5. Attach a fused jumper wire between the battery positive terminal and the remaining terminal in the 2-pin window motor connector. Unless the motor is at the end of its travel, the window should move with the jumpers attached.
6. To move the window in the opposite direction, reverse the jumper wire connections at the window motor connector.

Does the power window operate in both directions when the motor is operated directly from a battery?

--

Go to Step 20

Go to Step 19

19 | Replace the window motor. Is the repair complete? | -- | System OK | --
20 |

1. Make sure the window lock on the main switch is OFF.
2. Turn on the ignition, with the engine OFF.
3. At the rear power window switch connector, check the voltage at terminal 4.

Is the voltage equal to the specified value?

11-14 V

Go to Step 21

Go to Step 29

21 |

1. At the power window motor 2-pin connector, use an ohmmeter to measure the resistance of the power window motor. Record the resistance.
2. Re-connect the 2-pin power window motor connector.
3. Disconnect the rear power window switch connector.
4. Use an ohmmeter to measure between terminals 3 and 6 of the rear power window switch connector.

Is the resistance measured at the rear power window switch connector equal to the resistance previously measured at the rear power window motor connector?

--

Go to Step 23

Go to Step 22

22 | Repair the open circuit between the rear power window switch and the rear power window motor connector. Is the repair complete? | -- | System OK | --
23 |

1. Remove the rear power window switch for testing.
2. Connect an ohmmeter between terminals 1 and 6 of the rear power window switch, and observe the ohmmeter.
3. Connect the ohmmeter between terminals 2 and 3 of the rear power window switch, and observe the ohmmeter.

For both tests, did the ohmmeter indicate the specified value?

0 ohms

Go to Step 25

Go to Step 24

24 | Replace the rear power window switch. Is the repair complete? | -- | System OK | --
25 |

1. With the rear power window switch removed for testing, connect an ohmmeter between terminals 4 and 6, and put the switch in the DOWN position. Observe the ohmmeter.
2. Connect the ohmmeter between terminals 4 and 3, and put the switch in the UP position and observe the ohmmeter.

For both tests, did the ohmmeter indicate the specified value?

0 ohms

Go to Step 26

Go to Step 25

26 |

1. Reconnect the rear power window switch connector.
2. Disconnect the electrical connector from the power window main switch.
3. Use an ohmmeter to measure the resistance at the power window main switch between terminals 6 and 4 if you are testing the left rear window, or terminals 3 and 1 if you are testing the right rear window.

Is the resistance equal to the resistance previously measured at the motor connector?

--

Go to Step 28

Go to Step 27

27 | Repair the open circuit between the power window main switch and the rear power window switch. Is the repair complete? | -- | System OK | --
28 | Replace the power window main switch. Is the repair complete? | -- | System OK | --
29 |

1. Remove the power window main switch, but do not disconnect the electrical connector.
2. Make sure the window lock is OFF.
3. Turn on the ignition, with the engine OFF.
4. Check the voltage at terminal 10 of the power window main switch.

Is the voltage equal to the specified value?

11-14 V

Go to Step 27

Go to Step 28