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?

--

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

Did you perform the Engine Oil Pressure Switch Diagnosis?

--

Go to Step 3

Go to Engine Oil Pressure Sensor and/or Switch Diagnosis (3.4L) or Engine Oil Pressure Switch Diagnosis (3.8L) in Engine Controls

3

Replace the IPC. Refer to Instrument Cluster Replacement .

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