GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Automatic Door Locks Diagnostic System Check performed?

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Go to Step 2

Go to Automatic Door Locks System Check

2

  1. Turn the ignition switch off.
  2. Disconnect electrical connector of the inoperative door lock switch.
  3. Using a test light, connect between B+ and the inoperative door lock switch harness connector terminal F.

Is the test light on?

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Go to Step 3

Go to Step 4

3

  1. Check for a poor connection at the inoperative door lock switch.
  2. If connection is OK, then replace the inoperative door lock switch. Refer to Door Lock and Side Window and Outside Rearview Mirror Remote Control Switch Replacement in Doors.

Is the repair complete?

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Go to Step 5

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4

Repair poor connection or open in circuit 750.

Is the repair complete?

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Go to Step 5

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5

  1. Turn the ignition switch off.
  2. Reinstall connectors/components removed.
  3. Is the action complete?

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Go to Automatic Door Locks System Check

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