GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Headlight System Check?

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Go to Step 2

Go to Headlight System Check

2

  1. Disconnect the instrument cluster connector.
  2. Disconnect the BCM connector C1.
  3. Use the DMM to measure the resistance between terminal 9 of the instrument cluster connector and terminal C08 of the BCM connector C2.

Is the measured resistance less than the specified value?

5 ohms

Go to Step 4

Go to Step 3

3

  1. Locate an open or a high resistance in circuit M75.
  2. Repair the open or the high resistance in circuit M75.

Is the repair complete?

--

Go to Step 5

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4

  1. Inspect the high beam indicator bulb.
  2. If the high beam indicator bulb is OK, replace the instrument cluster. Refer to Instrument Cluster Indicator Lamp Replacement in Instrument Panel, Gauges and Console.

Is the replacement complete?

--

Go to Step 5

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5

  1. Connect all connectors and components that were disconnected.
  2. Verify that the high beam indicator operates properly.

Does the high beam indicator operate properly?

--

Go to Headlight System Check

Go to Step 1