GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the instrument cluster diagnostic system check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Engine Oil Life percent in PCM IPC data list.

Does the scan tool display zero percent with change engine oil message inoperative?

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Go to Step 3

System OK

3

Important: Perform the set up procedure for the replacement IPC.

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement and the set up procedure?

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Go to Step 4

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4

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2