FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Front Oxygen (A/F) Sensor
REMOVAL
1. Disconnect the ground cable from battery.

2. Remove the radiator sub fan and fan motor assembly. Radiator Sub Fan and Fan Motor > REMOVAL">
3. Lift up the vehicle.
4. Remove the under cover. Front Under Cover > REMOVAL">
5. Disconnect the front oxygen (A/F) sensor connector, and remove the clip holding the front oxygen (A/F) sensor harness.

(A) | Front oxygen (A/F) sensor connector | (B) | Rear oxygen sensor connector | (C) | Clip |
6. Lower the vehicle.
7. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
8. Remove the front oxygen (A/F) sensor.
CAUTION:
When removing the front oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.

Inspection
InstallationRear seat reminder
The Subaru Ascent is equipped with a rear seat reminder system designed to help
drivers check for passengers or items left in the rear seats before exiting the
vehicle.
This feature is activated when the rear doors of the Subaru Ascent are opened
and closed prior to driving.
When the ignitio ...
U.S.-spec. models (type A)
The illustration above is a typical example. For some models, the combination
meter
may be slightly different than that shown in the illustration.
Tachometer
Trip meter and odometer
Select lever/gear position indicator
Speedometer
Information display selection knob
ECO gauge
F ...
Removal
SECURITY AND LOCKS > IG Relay1 (Push Button Start)REMOVALCAUTION:Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">1. Disconnect the ground cable from battery ...