GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the 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. Connect a test light between the following door lock switch terminals:
  3. • The driver's side door lock switch, terminals B and B+
    • The passengers side door lock switch, terminals C and B+
  4. Press the unlock on the inoperative door lock switch while observing the DMM.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

Repair a poor connection or an open in circuit 781.

Is the repair complete?

--

Go to Step 5

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4

Repair the door lock switch.

Is the repair complete?

--

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 that were removed.

Have all the repairs been made?

--

Go to Power Door Locks System Check

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