GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Windows System Check?

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Go to Step 2

Go to Power Windows System Check

2

  1. Disconnect the left front window switch electrical connectors.
  2. Use a test light, backprobe between left front window switch harness connector C1 terminal D and ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3

Replace the left front window switch. Refer to Front Door Switch Replacement .

Did you complete the repair and test the system?

--

Go to Power Windows System Check

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4

Repair short to B+ in circuit 1307.

Did you complete the repair and test the system?

--

Go to Power Windows System Check

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