GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition switch to the RUN position.
  2. Disconnect the IP dimmer switch.
  3. Connect a test lamp from the IP dimmer switch connector terminal D to ground.

Does the test lamp light?

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Go to Step 3

Go to Step 2

2

Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Is the repair complete?

--

System OK

--

3

Repair the short to B+ in circuit 44 or circuit 8.

Is the repair complete?

--

System OK

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