GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Automatic Door Locks System Check performed?

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Go to Step 2

Go to Power Door Locks System Check

2

  1. Turn the ignition switch to the LOCK position.
  2. Disconnect the electrical connector of the inoperative door lock switch.
  3. Connect a test light between B+ and the inoperative door lock switch harness connector terminal F.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

  1. Inspect for a poor connection at the inoperative door lock switch.
  2. If the connection is OK, replace the inoperative door lock switch.

Has the repair been made?

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Go to Step 5

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4

Repair a poor connection or an open in CKT 750.

Has the repair been made?

--

Go to Step 5

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5

  1. Turn the ignition switch to the LOCK position.
  2. Reconnect the connectors.
  3. Reinstall the components.

Have all the repairs been made?

--

Go to Power Door Locks System Check

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