GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the headlamps on.
  2. Place the multi-function lever in the high beam position.
  3. Observe the headlamps.

Do the high beam headlamps operate?

--

Go to Step 2

Go to Headlights: (DRL)

2

  1. Remove the instrument cluster.
  2. Connect a test lamp from the instrument cluster connector terminal A17 to ground.
  3. Turn the headlamps on.
  4. Place the multi-function lever in the high beam position.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

  1. Check for a poor connection at the instrument cluster connector terminal A17.
  2. If the connection is OK, replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

System OK

--

4

Repair the open in circuit 11.

Is the repair complete?

--

System OK

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