Power Window Inoperative from Master Switch. Buick Lucerne 2006

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2006 🢒 Lucerne 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Power Window Inoperative from Master Switch

Step	Action	Yes	No
Schematic References: Power Window Schematics and Door Control Module Schematics Connector End View Reference: Power Door Systems Connector End Views DEFINITION: This diagnostic is used to diagnose either, an inoperative driver door power window, or, a passenger door power window that is inoperative only from the driver door switch assemble (DDSA). If the inoperative window is inoperative in only the Express Up mode, refer to Power Window Express Up Function Inoperative . This test assumes that all DTCs have been diagnosed.
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Verify that the Power Window Inoperative from Master Switch complaint is present. Does the power window system operate from the driver door switch assembly (DDSA) as described in the Description and Operation?	Go to Testing for Intermittent Conditions and Poor Connections	Go to Step 3
3	Install a scan tool. Turn ON the ignition, with the engine OFF. With the scan tool, observe the Driver LF Window Switch, Driver RF Window Switch, Driver LR Window Switch, and Driver RR Window Switch parameters in the DDSA data list. Operate each power window switch located on the DDSA. Did the parameters change from the Idle state to the Up, Down, Express Up, and Express Down states?	Go to Step 4	Go to Step 11
4	Is the inoperative window the driver door window?	Go to Step 5	Go to Power Window Inoperative - Passenger Door
5	Turn OFF the ignition. Disconnect the C 1 harness connector at the driver door module (DDM). Turn ON the ignition, with the engine OFF. Connect a test lamp between the battery positive voltage circuit and the ground circuit at the harness connector. Does the test lamp illuminate?	Go to Step 6	Go to Step 10
6	Connect the C 1 harness connector at the DDM. Disconnect the driver door power window motor harness connector. Connect a test lamp between the power window motor left front up control circuit at the harness connector and ground. Operate the DDSA LF Window Switch to the UP position. Does the test lamp illuminate?	Go to Step 7	Go to Step 8
7	Connect a test lamp between the power window motor left front down control circuit at the harness connector and ground. Operate the DDSA LF Window Switch to the DOWN position. Does the test lamp illuminate?	Go to Step 12	Go to Step 9
8	Test the power window motor left front up control circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 18	Go to Step 13
9	Test the power window motor left front down control circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 18	Go to Step 13
10	Test the battery positive voltage circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 18	Go to Step 14
11	Inspect for poor connections at the harness connector of the DDSA. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 18	Go to Step 15
12	Inspect for poor connections at the harness connector of the LF power window motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 18	Go to Step 16
13	Inspect for poor connections at the harness connector of the DDM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 18	Go to Step 17
14	Locate and repair an open or high resistance in the ground circuit. Refer to Wiring Repairs . Did you complete the repair?	Go to Step 18	--
15	Replace the DDSA. Refer to Door Lock and Side Window Switch Replacement - Driver Side Did you complete the replacement?	Go to Step 18	--
16	Replace the LF window sensor/motor assembly. Refer to Front Side Door Window Regulator Replacement . Did you complete the replacement?	Go to Step 18	--
17	Replace the DDM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 18	--
18	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2