GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire Power Windows System Check performed?

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Go to Step 2

Go to Power Windows System Check

2

  1. Turn the ignition switch to the RUN position.
  2. Using a test lamp, backprobe the left front window switch connector from terminal H to ground.

Does the test lamp light?

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Go to Step 3

Go to Step 4

3

Using a test lamp, backprobe the left front window switch connector between terminal H and terminal G.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

4

  1. Test for a poor connection at C200 terminal A8.
  2. If OK, repair the open in CKT 141, between PWR WDO circuit breaker and S307.

Is the repair complete?

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Go to Step 7

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5

Replace the left front window switch. Refer to Door Trim Plate Replacement .

Is the repair complete?

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Go to Step 7

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6

Repair the open in CKT 750, between left front window switch assembly connector terminal G and S504.

Is the repair complete?

--

Go to Step 7

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7

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors/components removed.

Have all the repairs been made?

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Go to Power Windows System Check

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