GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the left front window switch harness connector.
  2. Connect a test lamp.
  3. Backprobe between the left front window switch harness connector C1 terminal D and ground.

Does the test light illuminate?

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Go to Step 3

Go to Step 2

2

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

Has the repair been made and the system rechecked?

--

System OK

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3

Repair short to B+ in circuit 1307.

Has the repair been made and the system rechecked?

--

System OK

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