GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 4WD - RHD 🢒 Body and Accessories 🢒 Doors 🢒 Power Window Inoperative - Left Side

Step

Action

Value(s)

Yes

No

1

Was the Power Windows System Check performed?

--

Go to Step 2

Refer to Power Windows System Check

2
  1. Access the RH door lock and side window switch.
  2. Turn the ignition switch to the RUN position.
  3. Connect a J 39200 digital multimeter (DMM) to CKT 167 (TAN), terminal E and CKT 166 (LT BLU), terminal A at the RH door lock and side window switch connector C2.
  4. Operate the LH window at the RH door lock and side window switch in the UP/DOWN position.
  5. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 6

Go to Step 3

3

Inspect for a poor connection at the RH door lock and side window switch.

Is the connection OK?

--

Go to Step 5

Go to Step 4

4

Repair the connection as necessary.

Is the repair complete?

--

Refer to Power Windows System Check

--

5

Replace the RH door lock and side window switch.

Is the repair complete?

--

Power Windows System Check

--

6
  1. Access the LH door lock and side window switch.
  2. Turn the ignition switch to the RUN position.
  3. Connect a J 39200 DMM to CKT 166 (LT BLU), terminal J at the LH door lock and side window switch connector C1 and ground.
  4. Ensure that the LH door lock and side window switch connector remains connected.
  5. Operate the LH window at the RH door lock and side window switch in the UP position.
  6. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 8

Go to Step 7

7

Locate and repair the open or high resistance in CKT 166 (LT BLU) between the RH door lock and side window switch connector C2 terminal A and the LH door lock and side window switch connector C1 terminal J.

Is the repair complete?

--

Refer to Power Windows System Check

--

8
  1. Connect a J 39200 DMM to CKT 167 (TAN), terminal L at the LH door lock and side window switch connector C1and ground.
  2. Ensure that the LH door lock and side window switch connector C1 remains connected.
  3. Operate the LH window at the RH door lock and side window switch in the DOWN position.
  4. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 10

Go to Step 9

9

Locate and repair the open or high resistance in CKT 167 (TAN) between the LH door lock and side window switch connector C1 terminal L and the RH door lock and side window switch connector C2 terminal E.

Is the repair complete?

--

Refer to Power Windows System Check

--

10
  1. Connect a J 39200 DMM to CKT 666 (DK BLU), terminal G and CKT 667 (BRN), terminal K at the LH door lock and side window switch connector C1.
  2. Operate the LH window at the RH door lock and side window switch in the DOWN position.
  3. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 14

Go to Step 11

11

Inspect for a poor connection at the LH front door lock and side window switch.

Is the connection OK?

--

Go to Step 13

Go to Step 12

12

Repair the connection as necessary.

Is the repair complete?

--

Refer to Power Windows System Check

--

13

Replace the LH front door lock and side window switch.

Is the repair complete?

--

Refer to Power Windows System Check

--

14
  1. Turn the ignition switch to the RUN position.
  2. Place the side window lockout switch in the NORMAL (UNLOCKED) position.
  3. Connect a J 39200 DMM to CKT 1307 (DK BLU), terminal F at the LH front door lock and side window switch connector C1 and ground.
  4. Ensure that connector C1 remains connected.
  5. Test for voltage.

Is Ignition voltage present?

IGN+

Go to Step 16

Go to Step 15

15

Locate and repair the open or high resistance between CKT 1307 (DK BLU) at terminal F of the LH front door lock and side window switch connector C1and terminal B of the side window lockout switch.

Is the repair complete?

--

Refer to Power Windows System Check

--

16
  1. Connect a J 39200 DMM to CKT 666 (DK BLU), terminal C at the LH front side window regulator motor connector and CKT 667 (BRN), terminal K at the LH front door lock and side window switch connector C1.
  2. Operate the LH door lock and side window switch in the UP position.
  3. Test for voltage.

Is Ignition voltage present?

IGN+

Go to Step 18

Go to Step 17

17

Locate and repair the open or high resistance at CKT 666 (DK BLU) between terminal C at the LH front side window regulator motor connector and terminal G at the LH front door lock and side window switch connector C1.

Is the repair complete?

--

Refer to Power Windows System Check

--

18
  1. Connect a J 39200 DMM to CKT 666 (DK BLU), terminal C and CKT 667 (BRN), terminal B at the LH front side window regulator motor connector.
  2. Operate the LH door lock and side window switch in the DOWN position.
  3. Test for voltage.

Is Ignition voltage present?

IGN+

Go to Step 20

Go to Step 19

19

Locate and repair the open or high resistance at CKT 667 (BRN) between terminal B at the LH front side window regulator motor connector and terminal K at the LH front door lock and side window switch connector C1.

Is the repair complete?

--

Refer to Power Windows System Check

--

20

Inspect for a poor connection at the LH front side window regulator motor.

Is the connection OK?

--

Go to Step 22

Go to Step 21

21

Repair the connection as necessary.

Is the repair complete?

--

Refer to Power Windows System Check

--

22

Replace the LH front side window regulator motor.

Is the repair complete?

--

Refer to Power Windows System Check

--