GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Driver Information System Check before processing?

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Go to Step 2

Go to Driver Information System Check

2

  1. Turn the ignition switch to RUN.
  2. Using the Scan Tool driver information center (DIC) tests, select keytest.
  3. Press each DIC button. Observe the scan tool display.

Does the scan tool display the appropriate description for each button?

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Go to Step 4

Go to Step 3

3

Inspect the instrument cluster connectors for proper terminal contact.

Is the contact OK?

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Go to Step 5

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4

Inspect the DIC connector for proper terminal contact.

Is the contact OK?

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Go to Step 6

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5

Replace the instrument cluster.

Is the repair complete?

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Go to Driver Information System Check

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6

Replace the Heater and A/C control assembly.

Is the repair complete?

--

Go to Driver Information System Check

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