Schematic Reference: Instrument Cluster Schematics

Did you perform the Instrument Panel Cluster Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

1. Install a scan tool.
2. Turn ON the ignition with the engine OFF.
3. With the scan tool, observe the Engine Oil Life parameter in the PCM Engine Data 2 data list.

Does the Engine Oil Life parameter display 0%?

Go to Step 3

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

1. Turn OFF the ignition.
2. Disconnect the PCM connector C1.
3. Connect a 3 amp fused jumper wire between the change engine oil indicator control circuit and a good ground.
4. Turn ON the ignition with the engine OFF.

Does the CHANGE OIL indicator illuminate in the DIC?

Go to Step 6

Go to Step 4

Test the change engine oil indicator control circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 5

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 find and correct the condition?

Go to Step 9

Go to Step 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 correct the condition?

Go to Step 9

Go to Step 8

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

Go to Step 9

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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 9

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2