Hybrid Model

NOTE: After the ignition switch is turned to OFF, the engine oil level warning light goes off until a malfunction is detected again.

CHECK DTC .
Read the DTC using Subaru Select Monitor. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC)>OPERATION .

Is DTC detected?

Yes:
1. Repair the corresponding system.
2. Go to 2.
No:

Go to 2.
CHECK ENGINE OIL LEVEL .
Check the engine oil level. Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>ENGINE OIL>INSPECTION .

Is engine oil level normal?

Yes:

Go to 3.

No:
1. Adjust the engine oil level to a proper amount.
2. Go to 3.
CHECK ENGINE OIL LEVEL WARNING LIGHT .
1. Install the delivery mode fuse. Ref. to PRE-DELIVERY INSPECTION>PRE-DELIVERY INSPECTION (PDI) PROCEDURE>DELIVERY MODE .
2. Turn to IG ON (engine OFF), and wait for one minute or more.
3. Check if engine oil level warning light remains off.
Does the engine oil level warning light remain off?

Yes:

System is normal.

Restore the vehicle to its original state.

No:

Go to 4.
CHECK OIL LEVEL SWITCH .
1. Turn the ignition to OFF.
2. Disconnect the ground terminal from battery. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
3. Disconnect the oil level switch connector.
4. Check continuity between the oil level switch terminal and chassis ground.
Is there continuity?

Yes:

Go to 5.

No:

Replace the oil level switch. Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL LEVEL SWITCH .

Restore the vehicle to its original state.
CHECK CONTINUITY OF ENGINE WIRING HARNESS .
1. Disconnect the ECM connector. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>ENGINE CONTROL MODULE (ECM)>REMOVAL .
2. Check continuity between the connector on the engine wiring harness oil level switch side and the connector on the engine wiring harness ECM side.
Is there continuity?

Yes:

Go to 6.

No:
1. Repair the engine wiring harness.
2. Restore the vehicle to its original state.
CHECK COMBINATION METER .
1. Restore the vehicle to its original state.
2. Perform the self-diagnosis display mode of combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER SYSTEM>OPERATION>SELF-DIAGNOSIS DISPLAY MODE .
Is combination meter OK?

Yes:
1. Check for poor contact due to the wear of connector pin etc., and if no fault is found, replace the ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>ENGINE CONTROL MODULE (ECM) .
2. Restore the vehicle to its original state.
No:
1. Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .
2. Restore the vehicle to its original state.