COMMUNICATION SYSTEM > Relay and Fuse
INSPECTION
1. CHECK FUSE
1. Remove the fuse and check visually.
2. If the fuse is blown out, replace the fuse.
2. CHECK RELAY
1. Check the resistance between relay terminals.
Terminal No. | Inspection conditions | Specification | Circuit |
1 — 2 | Always | 1 M? or more |

1 — 2
Apply battery voltage between 4 — 3 terminals.
Less than 1 ?
2. Replace the relay if the inspection result is not within the standard value.
Relay and fuse
LocationDtc p0031 a/f / o2 heater control circuit low bank 1 sensor 1
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0031 A/F / O2 HEATER CONTROL CIRCUIT LOW BANK 1 SENSOR 1DTC DETECTING CONDITION:Immediately at fault recognitionCAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode ...
How to change the source
The AUX operation screen can be
reached by the following methods:
Connect a portable audio device. Refer
to "Connecting and disconnecting a USB
memory/portable device"
Select the "AUX" key on the source
select screen. Refer to "Selecting an audio
source"
Audio level settings
You c ...
Trailer towing
The Subaru Ascent is primarily engineered as a passenger-focused vehicle, designed
to deliver comfort, safety, and everyday usability. However, when towing a trailer,
additional mechanical stress is placed on key components such as the engine, drivetrain,
braking system, tires, and suspension. ...