For 1990-2009 cars

## Power Windows Inoperative from Left Front Switch Buick

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Power Windows System Check? | -- | Go to Step 2 | Go to Power Windows System Check
2 |

1. Disconnect the left front door lock/window switch connector.
2. Place the ignition switch in the RUN position.
3. Use a J 39200 digital multimeter (DMM) in order to backprobe between the left front door lock/window switch connector terminal N (BRN) and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3 | Replace the left front door lock/window switch. Refer to Door Lock and Side Window Switch Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --
4 | Repair the open in CKT 141 (BRN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --

## Power Windows Inoperative from Left Front Switch Oldsmobile

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Power Windows System Check? | -- | Go to Step 2 | Go to Power Windows System Check
2 |

1. Disconnect the left front power window switch connector.
2. Place the ignition switch in the RUN position.
3. Measure the voltage between the left front power window connector terminal K (BRN) and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3 | Replace the left front power window switch. Refer to Front Side Door Window Switch Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --
4 | Repair an open in CKT 141 (BRN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --