Schematic Reference: Instrument Cluster Schematics

NOTE: This diagnostic procedure applies only to the base (U2E) instrument panel cluster (IPC). The base (U2E) IPC is not equipped with a driver information center.

NOTE: The Change Engine Oil indicator is also used for a Low Engine Oil Level condition. When indicator is flashing the engine oil level is Low and when solid and not flashing the engine oil needs to be changed.

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Start the engine.

Does the change engine oil/low oil level indicator display in the instrument panel cluster (IPC)?

Go to Step 3

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

1. Install a scan tool.
2. Turn ON the ignition.
3. With the scan tool observe the Engine Oil Life Remaining parameter in the PCM/ECM IPC Data List.

Does the Engine Oil Life Remaining parameter display about or less than 5%?

Go to Step 4

Go to Step 5

Reset the engine oil life. Refer to GM Oil Life System Resetting in Maintenance and Lubrication.

Does the change engine oil/ low oil level indicator turn Off?

Go to Step 6

Go to Step 5

Replace the PCM/ECM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 6

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2