For 1990-2009 cars

## Power Window Inoperative - Left Side 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 power window control module connector.
2. Place the ignition switch in the RUN position.
3. Use a digital multimeter (DMM) in order to backprobe the power window control module between terminal A (BRN) and ground.

Does the voltage measure within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3 |

1. Connect a DMM between the power window control module connector terminal B (GRY) and ground.
2. Put the left front window down using the LH front door lock/window switch.

Does the voltage measure within the specified range?

10-15 V

Go to Step 5

Go to Step 6

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 | --
5 |

1. Connect a DMM between the power window control module connector terminal C (DK BLU) and ground.
2. Use the LH front door lock/window switch to put the left front power window up.

Does the voltage measure within the specified range?

10-15 V

Go to Step 11

Go to Step 7

6 | Test for an open or a short to ground in CKT 1136 (GRY). Did you find a condition? | -- | Go to Step 8 | Go to Step 10
7 | Test for an open or a short to ground in CKT 164 (DK BLU). Did you find a condition? | -- | Go to Step 9 | Go to Step 10
8 | Repair the open or the short to ground in CKT 1136 (GRY). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
9 | Repair the open or the short to ground in CKT 164 (DK BLU). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
10 | Replace the LH 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 | --
11 | Connect a fuse jumper between the power window control module terminal A (BRN) and terminal D (BRN). Does the LH front power window motor operate? | -- | Go to Step 12 | Go to Step 13
12 |

1. Connect a fuse jumper between the power window control module terminal D (BRN) and ground.
2. Press the left front window UP switch on the LH front door lock/window switch.

Does the LH front power window motor operate?

--

Go to Step 16

Go to Step 15

13 | Test for an open or a short to ground in CKT 165 (BRN). Did you find a condition? | -- | Go to Step 14 | Go to Step 15
14 | Repair the open or the short to ground in CKT 165 (BRN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
15 | Replace the LH front power window motor. Refer to Power Window Motor Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --
16 | Replace the power window control module. Refer to Front Side Door Window Module Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --

## Power Window Inoperative - Left Side 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 power window control module connector.
2. Turn the ignition switch to the RUN position.
3. Connect a digital multimeter (DMM) between the power window module connector terminal A (BRN) and ground.

Does the voltage measure within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3 |

1. Connect a DMM between the power window control module connector terminal B (GRY) and ground.
2. Press the left window DOWN switch at the LH front power window switch.

Does the voltage measure within the specified range?

10-15 V

Go to Step 5

Go to Step 6

4 | Repair an open in CKT 141. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
5 |

1. Disconnect the LH front power window motor connector.
2. Connect a DMM between the power window module connector terminal C (DK BLU) and ground.
3. Press the left window UP switch at the left front door power window switch.

Does the voltage measure within the specified range?

10-15 V

Go to Step 11

Go to Step 7

6 | Test for an open or a short to ground in CKT 1136 (GRY). Is there an open or a short to ground in CKT 1136? | -- | Go to Step 8 | Go to Step 10
7 | Test for an open or a short to ground in CKT 164 (DK BLU). Is there an open or a short to ground in CKT 164? | -- | Go to Step 9 | Go to Step 10
8 | Repair the open or the short to ground in CKT 1136 (GRY). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
9 | Repair the open or the short to ground in CKT 164 (DK BLU). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
10 | Replace the LH front power window switch. Refer to Front Side Door Window Switch Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --
11 | Connect a fused jumper between the power window control module terminal A and terminal D. Does the left front power window motor operate? | -- | Go to Step 12 | Go to Step 13
12 |

1. Connect a fused jumper between the power window control module terminal D and ground.
2. Press the left front window UP switch at the left front door power window switch.

Does the left front power window motor operate?

--

Go to Step 16

Go to Step 15

13 | Test for an open or a short to ground in CKT 165 (BRN). Is there an open or a short to ground in CKT 165? | -- | Go to Step 14 | Go to Step 15
14 | Repair the open or the short to ground in CKT 165. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Power Windows System Check | --
15 | Replace the LH front power window motor. Refer to Power Window Motor Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --
16 | Replace the power window control module. Refer to Front Side Door Window Module Replacement . Did you complete the repair? | -- | Go to Power Windows System Check | --