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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h6do) / Front oxygen (a f) sensor / Inspection

1. Check that the front oxygen (A/F) sensor has no deformation, cracks or other damages.

2. Measure the resistance between front oxygen (A/F) sensor terminals.

Terminal No.	Standard
3 and 4	2.0+0.42 −0.2 - (when 20°C (68°F))

Removal

1. Disconnect the ground terminal from battery sensor. NOTE2. Lift up the vehicle.3. Disconnect the connector (A) of the front oxygen (A/F) sensor.4. Remove the clip (B) securing the front oxygen (A/ ...

Installation

CAUTION:If lubricant is spilt over the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.1. Before installing front oxygen (A/F) sensor, apply anti-seize compound only ...

Other materials:

Electrical component location location
(1)VDC CM(6)Brake light relay(11)Steering angle sensor(2)TCM (engine type: EZ)(7)Lane departure warning OFF switch(12)EyeSight steering switch(3)Stereo camera(8)Pre-collision brake OFF switch(13)Data link connector(4)ECM(9)Body integrated unit(14)Stop light and brake switch(5)TCM (engine type: FB)(1 ...