GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Schematic Reference: Instrument Cluster Schematics .

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

Turn ON the ignition with the engine OFF.

Does the engine oil pressure indicator display in the message center?

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Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

3

  1. Start the engine.
  2. Check the engine oil pressure gage in the IPC.

Does the engine oil pressure gage display at or below the specified value?

0 psi (0 kPa)

Go to Engine Oil Pressure Gage Inaccurate or Inoperative

Go to Step 4

4

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

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Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3