GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Headlight System Check performed?

--

Go to Step 2

Go to Headlight System Check

2

  1. Place the headlamp switch in the headlamp position.
  2. Ensure that the headlamps light.
  3. Select high beam.
  4. Disconnect the connector at the instrument cluster.
  5. Connect a J 39200 DMM between the instrument cluster connector, cavity B3 for CKT 11 (LT GRN), and ground.

Is continuity present?

--

Go to Step 4

Go to Step 3

3

Repair the open in CKT 11 (LT GRN) between the instrument cluster and splice S234.

Is the high beam indicator operative?

--

Go to Headlight System Check

Go to Step 4

4

Connect a J 39200 DMM between the instrument cluster connector, cavity B1 for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 5

Go to Step 8

5

Is the filament of the high beam indicator lamp open?

--

Go to Step 6

Go to Step 7

6

Replace the high beam indicator lamp.

Is the high beam indicator operative?

--

Go to Headlight System Check

Go to Step 7

7

Replace the instrument cluster.

Is the high beam indicator operative?

--

Go to Headlight System Check

Go to Step 8

8

Repair the open in CKT 150 (BLK) between ground G201 and the instrument cluster.

Is the high beam indicator operative?

--

Go to Headlight System Check

--