2023 Subaru Ascent Fuses and Fuse Box Diagram User Guide
Essential electrical circuits are protected by fuses found in the 2023 Subaru Ascent fuse box. By avoiding electrical overloads, it ensures the safe operation of parts like lighting, audio, and engine systems. It is situated in the engine compartment and beneath the dashboard.
2023 Subaru Ascent Review, Price, Features and Mileage (Brochure)
Video: 2023 Subaru Ascent Fuses
Subaru Fuses Guide
CAUTION
Never replace a fuse with one having a higher rating or with material other than a fuse because serious damage or a fire could result.
NOTE
Fuse rating and using circuit are de-scribed on each behind the fuse box cover.
The fuses are designed to melt during an overload to prevent damage to the wiring harness and electrical equipment. The fuses are located in two fuse boxes.
Passenger Compartment Fuse Box
One is located under the instrument panel behind the fuse box cover on the driver’s seat side.
| Type | No. | Description | Notes |
|---|---|---|---|
| Fuse MINI20A | 2 | (CIGAR) Cigar lighter / power outlet | View problems with the cigarette lighter fuse… |
| Fuse MINI7.5A | 3 | (IG A-1) Protects several circuits | |
| Fuse MINI15A | 4 | (AUDIO NAVI) Audio system | View problems with the radio fuse… |
| Fuse MINI15A | 5 | (IG B-2) Protects several circuits | |
| Fuse MINI15A | 8 | (A/C IG) Air conditioning | View problems with the air conditioning fuse… |
| Fuse MINI7.5A | 9 | (ACC) Protects several accessory circuits | |
| Fuse MINI7.5A | 10 | (IG B-1) Protects several circuits | |
| Fuse MINI7.5A | 13 | (IG A-3) Protects several circuits | |
| Fuse MINI10A | 14 | UNIT +B | |
| Fuse MINI7.5A | 15 | (METER IG) Instrument cluster | |
| Fuse MINI7.5A | 17 | (MIRROR) Power control mirror | |
| Fuse MINI7.5A | 18 | (LAMP IG) Headlamps | View problems with the headlight fuse… |
| Fuse MINI10A | 19 | (IG A-2) Protects several circuits | |
| Fuse MINI10A | 20 | (SRS AIR BAG) Airbag | |
| Fuse MINI15A | 22 | (STRG/H) Heated steering wheel | |
| Fuse MINI10A | 23 | (DRL) Daytime running lights | View problems with the headlight fuse… |
| Fuse MINI10A | 26 | (BACK UP) Backup lights | |
| Fuse MINI15A | 27 | (SEAT HTR F) Front seat heater | |
| Fuse MINI15A | 28 | (TRAIL) Trailer | |
| Fuse MINI7.5A | 32 | (ILLUMI) Illumination | |
| Fuse MINI7.5A | 33 | (KEY SW A) Ignition switch | |
| Fuse MINI7.5A | 36 | (KEY SW E) Ignition switch | |
| Fuse MINI7.5A | 37 | (STOP) Stop lights | View problems with the brake light fuse… |
| Fuse MINI7.5A | 38 | (EYE SIGHT) EyeSight Driver Assist Technology |
To remove the cover, pull it out.
- Spare fuses
- Fuse puller
Engine Compartment Fuse Box
The other one (main fuse box) is housed in the engine compartment.
| Type | No. | Description | Notes |
|---|---|---|---|
| Fuse MINI7.5A | 1 | (HORN 2) Horn | View problems with the horn fuse… |
| Fuse MINI7.5A | 2 | (HORN 1) Horn | View problems with the horn fuse… |
| Fuse MINI15A | 3 | (H/L LO RH) Right-hand headlight low beam | View problems with the headlight fuse… |
| Fuse MINI15A | 4 | (H/L LO LH) Left-hand headlight low beam | View problems with the headlight fuse… |
| Fuse MINI10A | 5 | (DCM) Data Communication Module | |
| Fuse MINI10A | 6 | (H/L HI RH) Right-hand headlight high beam | |
| Fuse MINI10A | 7 | (H/L HI LH) Left-hand headlight high beam | |
| Fuse MINI10A | 8 | (TAIL) Tail lights | View problems with the tail light fuse… |
| Fuse MINI30A | 9 | (JB-B) Junction Box Bus | |
| Fuse MINI25A | 10 | (FUEL) Fuel Pump | View problems with the fuel pump fuse… |
| Fuse MINI7.5A | 11 | (OBD) On-Board Diagnostics | |
| Fuse MINI10A | 12 | (ODS) Occupant Detection System (Airbag) | |
| Fuse MINI7.5A | 13 | (PU B/UP) Power Unit Back-Up | |
| Fuse MINI15A | 14 | (HAZARD) Hazard Light | |
| Fuse MINI7.5A | 15 | AUX | |
| Fuse MINI10A | 16 | MB-B | |
| Fuse MINI20A | 17 | (SOCKET) Cigar lighter / Power outlet | View problems with the cigarette lighter… |
| Fuse MINI20A | 18 | (D/L) Power Door Lock System | |
| Fuse MINI15A | 19 | (ETC) Electronic Throttle Control | |
| Fuse MINI10A | 20 | (E/G2) Engine and Emissions Control (EGR) | |
| Fuse MINI7.5A | 21 | (CVT SSR) CVT Transmission | |
| Fuse MINI20A | 22 | (DI) Direct Ignition | |
| Fuse MINI20A | 24 | (O2 HTR) Oxygen Sensor | |
| Fuse MINI20A | 26 | (TCU) Transmission Control Unit | |
| Fuse MINI15A | 27 | (IG COIL) Ignition Coil | |
| Fuse MINI15A | 28 | (E/G1) Engine and Emissions Control (EGR) | |
| Fuse MINI30A | 29 | (BACKUP) Backup Lights | |
| Fuse MINI15A | 30 | (R_S/H) Rear Seat Heater | |
| Fuse MINI30A | 31 | (VDC SOL) Vehicle Dynamics Control Solenoid | |
| Fuse MINI15A | 32 | (F. FOG) Front Fog Lights | View problems with the fog light fuse… |
| Fuse MINI30A | 33 | (R. DEF) Rear Window Defogger | |
| Fuse MINI20A | 34 | (AUDIO) Audio System | View problems with the radio fuse… |
| Fuse MINI15A | 35 | (DEICER) Deicer / Defroster | |
| Fuse MINI20A | 37 | (BLOWER) AC Blower Motor | |
| Fuse MINI20A | 38 | (BLOWER) AC Blower Motor | |
| Fuse MINI15A | 40 | (R. WIPER) Rear Wiper | |
| Fuse MINI15A | 41 | (F. WASH) Windshield Washer | |
| Fuse MINI30A | 42 | (F. WIPER) Front Wipers |
Also, the spare fuses and fuse puller are stored in the fuse box cover.
Pinch the upper part of the fuse puller when removing it from the main fuse box.
- Good
- Blown
If any lights, accessories or other electrical controls do not operate, inspect the corre-sponding fuse. If a fuse has blown, replace it.
- Turn the ignition switch to the “LOCK”/ “OFF” position and turn off all electrical accessories.
- Remove the cover.
- Determine which fuse may be blown. Look at the back side of each fuse box cover.
- Pull out the fuse with the fuse puller.
- Inspect the fuse. If it has blown, replace it with a spare fuse of the same rating.
- If the same fuse blows again, this indicates that its system has a pro-blem. Contact your SUBARU dealer for repairs.
Installation of acces-sories
Always consult your SUBARU dealer before installing fog lights or any other electrical equipment in your vehicle. Such accessories may cause the electronic system to malfunction if they are incor-rectly installed or if they are not suited for the vehicle.
2023 Subaru Ascent Review, Price, Features and Mileage (Brochure)
How to Replace the Fuses of the 2023 Subaru Ascent
Replacing a fuse in your 2023 Subaru Ascent is a straightforward task if you follow the correct steps. Here’s a comprehensive guide to help you through the process:
Materials:
- The new fuse of the correct amperage.
- Fuse puller or needle-nose pliers.
Steps to Replace the Fuse:
-
Interior Fuse Box: Located under the instrument panel on the driver’s side. To access it, pull off the cover panel.
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Engine Compartment Fuse Box: Situated near the battery. Open the hood and locate the fuse box cover; lift it to access the fuses.
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Turn Off the Vehicle: Ensure the ignition is in the “LOCK”/”OFF” position and all electrical accessories are turned off.
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Access the Appropriate Fuse Box: Depending on the malfunctioning component, determine whether to access the interior or engine compartment fuse box.
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Identify the Blown Fuse:
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Refer to the diagram on the fuse box cover to locate the specific fuse related to the malfunctioning component.
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A blown fuse typically has a melted or broken metal strip inside.
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Remove the Blown Fuse:
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Use the fuse puller provided in the fuse box or a pair of needle-nose pliers to gently pull the fuse straight out.
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Insert the New Fuse:
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Replace the blown fuse with a new one of the same amperage rating.
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Ensure it is securely seated in the slot.
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Test the Component:
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Turn the ignition to the “ON” position and check if the component is functioning correctly.
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Tips:
-
Use the Correct Amperage: Always replace a fuse with one of the same amperage. Using a fuse with a higher rating can cause electrical damage or fire.
-
Avoid Using Metal Objects: When removing fuses, avoid using metal tools that can cause shorts.
Useful Links:
2023 Subaru Ascent Review, Price, Features and Mileage (Brochure)
2023 Subaru Ascent Keys and Smart Keys User Guide
2023 Subaru Ascent Radar Sensors User Guide