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For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Equinox 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Power Windows Inoperative - One

Power Windows Inoperative - One Front Power Windows

Test Description

The number below refers to the step number on the diagnostic table.

  1. The rear passenger power window switches on the main switch share common accessory voltage and ground circuits with the front windows. If the rear passenger power windows operate properly from the main switch the accessory voltage and ground circuits can be presumed good.

Step

Action

Yes

No

Schematic Reference: Power Window Schematics

Connector End View Reference: Power Door Systems Connector End Views

1

Did you review the Power Windows Description and Operation?

Go to Step 2

Go to Symptoms - Doors

2
  1. Turn ON the ignition, with the engine OFF.
  2. Operate the front power windows from the main power window switch.

Do the front power windows operate properly?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Operate the rear passenger windows from the main power window switch.

Do the rear passenger windows operate properly?

Go to Step 4

Go to Power Windows Inoperative - All

4
  1. Disconnect the inoperative front power window motor.
  2. Connect a test lamp to a good ground.
  3. Probe the power window motor up circuit at the power window motor harness connector.
  4. Activate the power window switch in the up direction.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

5
  1. With the test lamp still connected to a good ground, probe the power window motor down circuit at the power window motor harness connector.
  2. Activate the power window switch in the down direction.

Does the test lamp illuminate?

Go to Step 6

Go to Step 8

6
  1. Connect a test lamp between the power window motor up and down circuits at the power window motor harness connector.
  2. Activate the power window switch in the up and down directions.

Does the test lamp illuminate in both directions?

Go to Step 10

Go to Step 9

7

Test the power window motor up circuit for high resistance, an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 9

8

Test the power window motor down circuit for high resistance, an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 10

9

Inspect for poor connections at the main power window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 11

10

Inspect for poor connections at the power window motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 12

11

Replace the main power window switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the replacement?

Go to Step 13

--

12

Replace the power window motor. Refer to Front Side Door Window Regulator Motor Replacement .

Did you complete the replacement?

Go to Step 13

--

13

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2

Power Windows Inoperative - One Rear Power Windows

Step

Action

Yes

No

Schematic Reference: Power Window Schematics

Connector End View Reference: Power Door Systems Connector End Views

1

Did you review the Power Window Description and Operation?

Go to Step 2

Go to Symptoms - Doors

2
  1. Turn ON the ignition, with the engine OFF.
  2. Turn OFF the window lockout switch.
  3. Operate the rear passenger windows up and down from both the rear passenger window switch and the main power window switch.

Do the rear passenger windows operate properly from both switches?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Does the rear passenger window operate from the main power window switch and not the rear passenger window switch?

Go to Step 5

Go to Step 4

4

Does the rear passenger window operate from the rear passenger window switch and not the main power window switch?

Go to Step 6

Go to Step 7

5
  1. Disconnect the passenger power window switch.
  2. Connect a test lamp between the window lockout control circuit at the passenger power window switch harness connector and a good ground.

Does the test lamp illuminate?

Go to Step 17

Go to Step 12

6

Does the driver window operate from the main power window switch?

Go to Step 20

Go to Power Windows Inoperative - All

7
  1. Disconnect the passenger power window motor.
  2. Connect a test lamp between power window motor up circuit at the passenger power window motor harness connector and a good ground.
  3. Operate the passenger power window in the up direction from the main power window switch.

Did the test lamp illuminate?

Go to Step 8

Go to Step 10

8
  1. Connect a test lamp between power window motor down circuit at the passenger power window motor harness connector and a good ground.
  2. Operate the passenger power window in the down direction from the main power window switch.

Did the test lamp illuminate?

Go to Step 9

Go to Step 11

9
  1. Connect a test lamp between power window motor up and down circuits at the passenger power window motor harness connector.
  2. Operate the passenger power window in the up and down directions.

Did the test lamp illuminate in both directions?

Go to Step 18

Go to Step 19

10
  1. Disconnect the passenger power window switch.
  2. Connect a test lamp between the power window master switch up signal circuit at the passenger power window switch harness connector and a good ground.
  3. Operate the passenger power window in the up direction from the main power window switch.

Did the test lamp illuminate?

Go to Step 15

Go to Step 13

11
  1. Disconnect the passenger power window switch.
  2. Connect a test lamp between the power window master switch down signal circuit at the passenger power window switch harness connector and a good ground.
  3. Operate the passenger power window in the down direction from the main power window switch.

Did the test lamp illuminate?

Go to Step 16

Go to Step 14

12

Test for high resistance or an open in the window lockout control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 20

13

Test for high resistance or an open in the power window master switch up signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 19

14

Test for high resistance or an open in the power window master switch down signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 19

15

Test for high resistance or an open in the power window motor up control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 17

16

Test for high resistance or an open in the power window motor down control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 17

17

Inspect for poor connections at the passenger power window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 22

18

Inspect for poor connections at the passenger power window motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 21

19

Inspect for poor connections at the main power window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 20

20

Replace the main power window switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the replacement?

Go to Step 23

--

21

Replace the rear passenger power window motor. Refer to Rear Side Door Window Regulator Motor Replacement .

Did you complete the replacement?

Go to Step 23

--

22

Replace the passenger power window switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the replacement?

Go to Step 23

--

23

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2