Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics | |||
1 | Did you perform the Instrument Panel Cluster Diagnostic System Check? | Go to Step 2 | |
2 | Turn ON the ignition, with the engine OFF. Does the CHANGE OIL indicator illuminate in the driver information center (DIC)? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 |
Does the Engine Oil Life parameter display 0%? | Go to Step 4 | Go to Step 5 |
4 | Reset the engine oil life. Refer to GM Oil Life System Resetting in Maintenance and Lubrication. Does the CHANGE OIL indicator turn off? | Go to Step 11 | Go to Step 5 |
5 |
Does the indicator still illuminate in the DIC? | Go to Step 6 | Go to Step 7 |
6 | Test the change engine oil indicator control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 8 |
7 | Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
8 | Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you correct the condition? | Go to Step 11 | Go to Step 9 |
9 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 11 | -- |
10 |
Important: Program the replacement PCM. Replace the PCM. Refer to Powertrain Control Module Replacement in Engine Controls-8.1L. Did you complete the replacement? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
