Subaru Legacy BN/BS (2015-2019) Service Manual: Engine oil

Engine lubrication system trouble in general inspection

Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.TroublePossible causeCorrective actionWarning light remains ON.a. Oil pressure switch failure ...

Replacement

CAUTION:If the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emission of smoke or causing a fire.1. Open the oil filler cap for quick draining of engine oil ...

Other materials:

Inspection
1. CHECK THE MASS AIR FLOW SENSOR UNIT1. Connect the battery positive terminal to terminal No. 3 and the battery ground terminal to terminal No. 4, and connect the circuit tester positive terminal to terminal No. 5 and the circuit tester ground terminal to terminal No. 4.2. Check the voltage changes ...