GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster System Check?

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Got to Step 2

Go to Instrument Cluster System Check Instrument Cluster System Check

2

Do the high beam headlights function properly?

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Got to Step 3

Go to Headlight System Check Headlamp System Check

3

  1. Disconnect instrument cluster connector C1.
  2. Using a DMM measure the voltage at the following terminals:
  3. • terminal A9 (Buick).
    • terminal C1 (Olds).
    • terminal B16 (Pont).

Is the voltage as specified?

10-15 V

Got to Step 5

Got to Step 4

4

Repair the open in one of the following circuits:

    • CKT 1360(LT. GRN/BLK)(Buick).
    • CKT 11(LT. GRN)(Olds).
    • CKT 11(LT. GRN)(Pont).

Is the repair complete?

--

Go to Instrument Cluster System Check Instrument Cluster System Check

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5

Inspect for poor contact at the following terminals:

    • terminal A9(Buick).
    • terminal C1(Olds).
    • terminal B16(Pont).

Are the connections ok?

--

Got to Step 7

Got to Step 6

6

Repait the poor terminal contact.

Is the repair complete?

--

Go to Instrument Cluster System Check Instrument Cluster System Check

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7

Replace the instrument cluster.

Is the replacement complete?

--

Go to Instrument Cluster System Check Instrument Cluster System Check

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