GM Service Manual Online
For 1990-2009 cars only

Step

Action

Values

Yes

No

Schematic Reference: Instrument Cluster Schematics

1

Did you perform the IPC Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

With a scan tool, observe the Oil Temp parameter in the IPC data 1 list.

Does the scan tool indicate the correct oil temperature?

--

Go to Step 3

Go to Step 4

3

With a scan tool, observe the Oil Temp parameter in the IPC data 1 list and the oil temperature gage display on the DIC.

Does the scan tool display correspond with the oil temperature gage display within the specified value?

10°C

(14°F)

System OK

Go to Step 5

4

Replace the oil temperature sensor. Refer to Engine Oil Temperature Gage Sensor Replacement .

Did you complete the replacement?

--

Go to Step 6

--

5

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

--

Go to Step 6

--

6

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2