Diagnostic Procedure
ONE WINDOW MOTOR INOPERATIVE FROM ANY SWITCH SYMPTOM CHART
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. With the DRBIII®, erase DTCs. Try to operate the inoperative power window several times but do not hold the switch longer than 5 seconds. With the DRBIII®, read DTCs. Are there any POWER WINDOW related trouble codes present? Yes --> Refer to POWER WINDOWS for the related symptom(s). Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 2 |
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| 2 | Remove the appropriate door panel and gain access to the motor connector. Disconnect the power window motor connector. Using a 12-volt test light, connect one lead to the WINDOW DRIVER UP circuit and the other lead to the WINDOW DRIVER DOWN circuit in the connector. Turn the ignition on. Press the Power Window Switch UP and then DOWN several times while observing the test light. Does the test light illuminate brightly when the switch is pressed in both directions? Yes --> Check and repair any binding conditions. If okay, replace the inoperative power window motor (regulator). Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 3 |
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| 3 | Remove the appropriate door panel and gain access to the motor connector. Disconnect the power window motor connector. Using a 12-volt test light connected to Ground, check the WINDOW DRIVER DOWN circuit. Turn the ignition on. Press the Power Window Switch DOWN and observe the test light. Does the test light illuminate brightly when the switch is pressed in the DOWN position? Yes --> Go To 4 No --> Go To 6 |
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| 4 | Remove the appropriate door panel and gain access to the motor connector. Disconnect the power window motor connector. Using a 12-volt test light connected to Ground, check the WINDOW DRIVER UP circuit. Turn the ignition on. Press the Power Window Switch UP and observe the test light. Does the test light illuminate brightly when the switch is pressed in the UP position? Yes --> Replace the appropriate Door Module (motor ground open). Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 5 |
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| 5 | Turn the ignition off. Disconnect the power window motor connector. Disconnect the appropriate Door Module C1 connector. Measure the resistance of the appropriate Window Driver Up circuit between the Door Module connector and the Motor connector. Is the resistance below 5.0 ohms? Yes --> Replace the appropriate Door Module. Perform BODY VERIFICATION TEST - VER 1 . No --> Repair the Window Driver Up circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
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| 6 | Turn the ignition off. Disconnect the power window motor connector. Disconnect the appropriate Door Module C1 connector. Measure the resistance of the appropriate window Driver Down circuit between the Door Module connector and the Motor connector. Is the resistance below 5.0 ohms? Yes --> Replace the appropriate Door Module. Perform BODY VERIFICATION TEST - VER 1 . No --> Repair the Window Driver Down circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
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