GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the power door system diagnostic system check?

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Go to Step 2

Go to Diagnostic System Check - Power Door Systems

2

Operate the window from both the master (LF) and the RF power window switch.

Does the window operate from both the master (LF) window switch and the RF switch?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Does the window operate from the master window switch?

--

Go to Step 4

Go to Step 5

4

Test the ground circuit of the RF window switch for an open.

Did you find and correct the condition?

--

Go to Step 17

Go to Step 13

5

Does the window operate from the RF power window switch?

--

Go to Step 11

Go to Step 6

6

Connect a test lamp between the RAP2 relay output circuit and ground at the RF switch.

Does the test lamp illuminate?

--

Go to Step 8

Go to Step 7

7

Test the RAP2 relay output circuit for an open or short to ground.

Did you find and correct the condition?

--

Go to Step 17

Go to 625378

8

  1. Connect a test lamp between the RF window up and window down feed circuits at the motor.
  2. Press the window switch to the up or down position.

Does the test lamp illuminate?

--

Go to Step 10

Go to Step 9

9

Test the RF power window motor feed circuits for an open.

Did you find and correct the condition?

--

Go to Step 17

Go to Step 13

10

Replace the power window motor.

Did you complete the replacement?

--

Go to Step 17

--

11

  1. Connect a test lamp between the master window switch RF window down circuit and battery voltage at the RF window switch.
  2. Press the RF switch to the down position on the master switch.

Does the test lamp illuminate?

--

Go to Step 12

Go to Step 14

12

  1. Connect a test lamp between the master window switch RF window up circuit and battery voltage at the RF window switch.
  2. Press the RF switch to the up position on the master switch.

Does the test lamp illuminate?

--

Go to Step 13

Go to Step 15

13

Replace the power RF window switch.

Did you complete the replacement?

--

Go to Step 17

--

14

Test the RF window down circuit from the master switch for an open.

Did you find and correct the condition?

--

Go to Step 17

Go to Step 16

15

Test the RF window up circuit from the master switch for an open.

Did you find and correct the condition?

--

Go to Step 17

Go to Step 16

16

Replace the master window switch.

Did you complete the replacement?

--

Go to Step 17

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17

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2