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For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Yukon Denali 🢒 Body and Accessories 🢒 Doors 🢒 Power Window Inoperative - Left Side Front

Power Window Inoperative - Left Side Front Pickup

Step

Action

Value(s)

Yes

No

DEFINITION: This diagnostic should be used only if the left front window is inoperative but the right front window operates from the left window switch.

1

Has the Power Window System Check been performed?

--

Go to Step 2

Go to Power Windows System Check

2
  1. Place the ignition switch in the RUN position.
  2. Connect a test lamp between CKT 164 (DK BLU) and CKT 165 (BRN) at the LF power window master switch, cavity A and cavity E.
  3. Press the LF power window master switch up and down.

    4. Observe the test lamp.

Does the test lamp light in both window switch positions?

--

Go to Step 3

Go to Step 4

3
  1. Connect a test lamp between CKT 164 (DK BLU) and CKT 165 (BRN) at the LF power window motor.
  2. Press the LF power window master switch up and down.

    3. Observe the test lamp.

Does the test lamp light in both window switch positions?

--

Go to Step 5

Go to Step 6

4
  1. Inspect the LF power window master switch connector for faulty connections.
  2. If the connections are OK, replace the LF power window master switch. Refer to Power Accessory Switch Panel Replacement .

Is the repair complete?

--

Go to Power Windows System Check

--

5
  1. Inspect the LF power window motor connector for faulty connections.
  2. If the connections are OK, replace the LF power window motor. Refer to Front Side Door Window Regulator Replacement .

Is the repair complete?

--

Go to Power Windows System Check

--

6

Repair the open between the LF power window master switch connector and the LF power window motor connector in CKT 164 (DK BLU) or in CKT 165 (BRN). Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Windows System Check

--

Power Window Inoperative - Left Side Front 4-Door Utility

Step

Action

Value(s)

Yes

No

DEFINITION: This diagnostic should be used only if the left front window is inoperative but the right front window operates from the left window switch.

1

Has the Power Windows System Check been performed?

--

Go to Step 2

Go to Power Windows System Check

2
  1. Place the ignition switch in the RUN position.
  2. Connect a test lamp between CKT 164 (DK BLU) and CKT 165 (BRN) at the LF power window master switch, cavity A and cavity E.
  3. Press up the window switch.

    4. Observe the test lamp.

  4. Press down the window switch.

    5. Observe the test lamp.

Does the test lamp light in both window switch positions?

--

Go to Step 3

Go to Step 4

3
  1. Connect a test lamp between CKT 164 (DK BLU) and CKT 165 (BRN) at the LF power window motor.
  2. Press up the window switch.

    3. Observe the test lamp.

  3. Press down the window switch.

    4. Observe the test lamp.

Does the test lamp light in both window switch positions?

--

Go to Step 5

Go to Step 6

4
  1. Inspect the LF power window master switch connector C2 for faulty connections.
  2. If the connections are OK, replace the LF power window master switch. Refer to Power Accessory Switch Panel Replacement .

Is the repair complete?

--

Go to Power Windows System Check

--

5
  1. Inspect the left front power window motor connector for faulty connections.
  2. If the connections are OK, replace the left front window motor. Refer to Front Side Door Window Regulator Replacement .

Is the repair complete?

--

Go to Power Windows System Check

--

6

Repair the open between the LF power window master switch connector C2 and the left front window motor connector in CKT 164 (DK BLU) or in CKT 165 (BRN). Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Windows System Check

--