GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics

Connector End View Reference: Engine Control Module Connector End Views in Engine Controls - 3.6 L, Engine Control Module Connector End Views in Engine Controls - 4.6 L or to Inline Harness Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Start the engine.

Does the engine oil pressure indicator illuminate after the displays test?

Go to Step 3

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

3

Replace the instrument panel cluster (IPC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.

Did you complete the replacement?

Go to Step 4

--

4

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2