GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Riviera 🢒 Body and Accessories 🢒 Doors 🢒 Power Window Inoperative - Left Side

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 express down module connector.
  2. Place the ignition switch in the RUN position.
  3. Use a J 39200 digital multimeter (DMM) in order to backprobe the express down module between terminal A (BRN) and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3
  1. Connect the DMM between the express down module connector terminal B (GRY) and ground.
  2. Use the the left front power window switch in order to lower the left front window.

Is the voltage 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 the DMM between the express down module connector terminal C (DK BLU) and ground.
  2. Use the left front power window switch in order to raise the left front power window.

Is the voltage 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 the circuit OK?

--

Go to Step 10

Go to Step 8

7

Test for an open or a short to ground in CKT 164 (DK BLU).

Is the circuit OK?

--

Go to Step 10

Go to Step 9

8

Repair the open or the short to ground in CKT 1136 (GRY). Refer to Wiring Repairs

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 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

--

11

Connect a fused jumper between the express down module terminal A (BRN) and terminal D (BRN).

Does the left front power window motor operate?

--

Go to Step 12

Go to Step 13

12
  1. Connect a fused jumper between the express down module terminal D (BRN) and ground.
  2. Press the left front window UP switch on the left front 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 the circuit OK?

--

Go to Step 15

Go to Step 14

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 left front power window motor. Refer to Power Window Motor Replacement .

Did you complete the repair?

--

Go to Power Windows System Check

--

16

Replace the express down module.

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 express down module connector.
  2. Turn the ignition switch to the RUN position.
  3. Connect a J 39200 digital multimeter (DMM) between the express down module connector terminal A (BRN) and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 4

3
  1. Connect the DMM between the express down module connector terminal B (GRY) and ground.
  2. Press the left window DOWN switch at the left front power window switch.

Is the voltage 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 left front power window motor connector.
  2. Connect the DMM between the express down module connector terminal C (DK BLU) and ground.
  3. Press the left window UP switch on the left front power window switch.

Is the voltage 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 left 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 express down 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 express down module terminal D and ground.
  2. Press the left front window UP switch on the left front 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 left front power window motor. Refer to Power Window Motor Replacement .

Did you complete the repair?

--

Go to Power Windows System Check

--

16

Replace the express down module.

Did you complete the repair?

--

Go to Power Windows System Check

--