GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the IP Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

  1. Turn the Ignition switch to RUN.
  2. Connect the scan tool.
  3. Inspect the instrument cluster DTC.

Is any DTC set?

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Go to the appropriate DTC Diagnostic Table

Go to Step 3

3

  1. Turn the Ignition switch to Run.
  2. Connect the scan tool.
  3. Select the instrument cluster Inputs Menu.

Does the English/Metric switch input on the scan tool cycle on and off when the ENG/MET button is pressed?

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Go to Step 11

Go to Step 4

4

  1. Turn the Ignition switch to OFF.
  2. Disconnect the instrument cluster connector.
  3. Connect a J 39200 digital multimeter (DMM) between terminal B10 and ground.
  4. Press the ENG/MET button.

Is the resistance within the specified range?

0-5 ohms

Go to Step 5

Go to Step 10

5

Does the ENG/MET button work correctly?

--

Go to Step 6

Go to Step 8

6

Check CKT 1325 for an open.

Is CKT 1325 open?

--

Go to Step 7

Go to Step 10

7

Repair the open in CKT 1325.

Is the repair complete?

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Go to Diagnostic System Check - Instrument Cluster

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8

Check CKT 350 for an open.

Is CKT 350 open?

--

Go to Step 9

Go to Step 10

9

Repair the open in CKT 350.

Is the repair complete?

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Go to Diagnostic System Check - Instrument Cluster

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10

Replace the DIC switch assembly. Refer to Driver Information Display Switch Replacement .

Is the repair complete?

--

Go to Diagnostic System Check - Instrument Cluster

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11

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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Go to Diagnostic System Check - Instrument Cluster

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