For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit/System Description
The engine control module (ECM) determines when the engine oil should be changed and calculates the oil life in percent. The instrument panel cluster (IPC) receives this information from the ECM through class 2 serial data and illuminates the oil level percent in the driver information center. The IPC will illuminate the CHANGE ENGINE OIL message when the oil needs to be changed.
Reference Information
Fuel Level Specifications
Schematic Reference
Connector End View Reference
Displays and Gages Connector End Views
Electrical Information Reference
Scan Tool Reference
Circuit/System Testing
Verify the scan tool Engine Oil Life Remaining parameter is greater than 0 percent.
| ⇒ | If equal to 0 percent, replace IPC. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for the IPC replacement, setup, and programming |
