For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Instrument Cluster Schematics
1 | Did you perform the Instrument Cluster Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Instrument Cluster
2 |

1. Install a scan tool.
2. Turn ignition ON, with the engine OFF.
3. Observe the Oil Life Reset Switch parameter in the BCM Switch Inputs data list.
4. Press the oil life reset switch.

Does the Oil Life Reset Switch parameter display Low with the switch pressed?

Go to Step 3

Go to Step 5

3 | Does the change oil indicator remain illuminated? | Go to Step 4 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
4 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 6 | --
5 | Replace the under hood fuse block. Refer to Underhood Electrical Center or Junction Block Replacement in Wiring Systems. 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