Power Windows Inoperative - One or Both Rear Windows

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Power Window Schematics Connector End View Reference: Power Door Systems Connector End Views
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Verify that the rear power window fault is present. Do both of the rear power windows operate normally?	Go to Testing for Intermittent Conditions and Poor Connections	Go to Step 3
3	Are both rear windows inoperative?	Go to Step 4	Go to Step 5
4	Test for a poor connection or an open in the lockout signal circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 12
5	Disconnect the inoperative window switch. Turn ON the ignition, with the engine OFF. Probe the lockout signal circuit of the inoperative window switch with a test lamp that is connected to ground. Does the test lamp illuminate?	Go to Step 6	Go to Step 4
6	Connect a test lamp between the switch up signal circuit of the inoperative window switch and the down signal circuit of the inoperative window switch. Operate the driver window switch to the UP and DOWN positions. Does the test lamp illuminate in both positions?	Go to Step 8	Go to Step 7
7	Test the power window master switch signal circuits of the inoperative window switch for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 12
8	Connect the inoperative window switch. Disconnect the inoperative window motor. Connect a test lamp between the power window motor up circuit of the inoperative window motor and the power window motor down circuit of the inoperative window motor. Operate the inoperative window switch to the UP and DOWN positions. Does the test lamp illuminate in both positions.	Go to Step 10	Go to Step 9
9	Test the inoperative window motor up and down circuits of the inoperative window motor for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 11
10	Inspect for poor connections at the harness connector of the inoperative window motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 14
11	Inspect for poor connections at the harness connector of the inoperative window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 15
12	Inspect for poor connections at the harness connector of the driver window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 13
13	Replace the driver window switch. Refer to Power Window Switch Replacement . Did you complete the replacement?	Go to Step 16	-
14	Replace the inoperative window motor. Refer to Window Regulator Motor Replacement - Front Door or Window Regulator Motor Replacement - Rear Door . Did you complete the replacement?	Go to Step 16	-
15	Replace the inoperative window switch. Refer to Power Window Switch Replacement or Power Window Switch Replacement - Rear Door . Did you complete the replacement?	Go to Step 16	-
16	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2