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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h4do) / Rear oxygen sensor / Inspection

1. Check that the rear oxygen sensor has no deformation, cracks or other damages.

2. Measure the resistance between rear oxygen sensor terminals.

Terminal No.	Standard
1 and 2	5.6+1.7 −0.6 - (when 20°C (68°F))

Removal

1. Disconnect the ground terminal from battery sensor. NOTE2. Lift up the vehicle.3. Remove the under cover. Front Under Cover > REMOVAL4. Disconnect the rear oxygen sensor connector.(A)Front oxygen ...

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 rear oxygen sensor, apply the anti-seize compound only to ...

Other materials:

Dtc b1908 short in front p/t lh (to +b)
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Short circuit failure in power supply (shorted in rear harness power supply, shorted in front seat pretensioner LH power supply, shorted in airbag CM internal circuit power supply)CAUTION:Before performing diagnosis, ...