For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform A Diagnostic System Check - Door Systems? | Go to Step 2 | Go to Diagnostic System Check - Door Systems
2 | Verify that all of the power windows are inoperative. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3
3 |

1. Disconnect the Power Accessory Switch Panel.
2. Turn the ignition switch to the RUN position.
3. Use a test lamp and probe between the battery positive voltage circuit on the switch connector and a good ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 7

4 |

1. Make sure the ignition switch is in the RUN position.
2. Use a test lamp and probe between the ignition voltage circuit on the Power Accessory Switch Panel connector and a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 9

5 |

1. Make sure the ignition switch is in the RUN position.
2. Use a test lamp and probe between the ignition voltage circuit on the switch connector that supplies voltage to the window motors and a good ground.

Does the test lamp illuminate?

Go to Step 6

Go to Step 11

6 |

1. Make sure the ignition switch is in the RUN position.
2. Use a test lamp and probe between the ground circuit on the Power Accessory Switch Panel connector and battery positive voltage.

Does the test lamp illuminate?

Go to Step 15

Go to Step 13

7 | Test the battery positive voltage circuit into the Power Accessory Switch Panel for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 8
8 | Test the battery positive voltage circuit into the Power Accessory Switch Panel 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 16 | Go to Step 14
9 | Test the ignition voltage circuit into the Power Accessory Switch Panel for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14
10 | Test the ignition voltage circuit into the Power Accessory Switch Panel 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 16 | Go to Step 14
11 | Test the ignition voltage circuit from the Power Accessory Switch Panel to the window motors for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14
12 | Test the ignition voltage circuit from the Power Accessory Switch Panel to the window motors 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 16 | Go to Step 14
13 | Test the ground circuit to the Power Accessory Switch Panel for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14
14 | Inspect for poor connections at the Power Accessory Switch Panel. 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 16 | Go to Step 15
15 | Replace the Power Accessory Switch Panel. Refer to Power Accessory Switch Panel Replacement . Did you complete the repair? | Go to Step 16 | --
16 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 3