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Airbag24

Subaru Ascent WM airbag control unit repair

Subaru Ascent WM airbag control unit repair at Airbag24

Airbag24 repairs defective airbag control units professionally and affordably. Both private customers and workshops can order without registration and benefit from fast processing, 2 years' statutory liability for defects and plug&play installation.

Airbag24 works with state-of-the-art diagnostic technology and specialised repair processes. Because defective control units often involve only individual components, a professional overhaul can be considerably cheaper than buying new.

Our advantages: no registration required, a direct online ordering process for B2B and B2C customers, express shipping and comprehensive quality testing. The repaired control unit works like a new part.

Repair type

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4.8
Google reviews of our shop(246)

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Matching part numbers

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Repair time

Our estimated repair time for this product is about: 3–4 business days

Which repair matches your fault code?

Below your code you can see what needs to be done.

We can only tell in our workshop whether your unit is defective and can be repaired.

Your error code isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.

Specifications

Make
Subaru
Model
Subaru Ascent
Series
WM (2018-2022)WM Facelift (2022-XXXX)
Subaru Ascent WM
Subaru Ascent WMPhoto: SsmIntrigue · CC BY-SA 4.0 · cropped

Shipping & repair from Germany

Airbag24 repairs your component in Berlin — usually within 3–4 working days.

Standard shipping within Germany is free; we normally return your part by UPS.

You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.

If you withdraw from the contract, you bear the cost of returning the item.

Google reviews

4.8
Based on 246 reviewsView all reviews →

What is a Subaru Ascent WM airbag control unit?

The Subaru Ascent WM airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle. A professional Subaru Ascent WM airbag control unit repair is essential for safety in the event of a defect.

This electronic control unit, often referred to as the SRS airbag computer, is of utmost importance for the safety of vehicle occupants. It processes incoming sensor information in milliseconds to trigger airbags and seatbelt pretensioners in an emergency.

Why is the Subaru Ascent WM airbag control unit defective?

The Subaru Ascent WM airbag control unit frequently fails due to crash events, internal electronic faults, or voltage fluctuations in the vehicle's electrical system. Because it stores crash data after an airbag deployment, it often needs to be reset or replaced to restore full functionality and safety.

Because the airbag control unit stores crash data in the event of an accident, it blocks further deployments and must be professionally inspected after a collision. A defective module can activate the airbag warning light and compromise vehicle safety.

Even without an accident, failure can occur due to aging components or a faulty power supply. A quick diagnosis is crucial for a successful Subaru Ascent WM airbag control unit repair.

Common error codes for Subaru Ascent WM airbag control unit repair

When repairing a Subaru Ascent WM airbag control unit, specific trouble codes are crucial for diagnosing the defect. These OBD-II B codes provide information about communication problems or interruptions in the airbag circuit, which could indicate a fault in the control unit.

  • B1000 → Control Unit Communication Error → This code indicates an interruption in the data connection of the airbag control unit, often caused by internal damage or cable problems.
  • B1801 → Open circuit in the driver airbag → An open circuit means that the driver airbag's firing circuit is interrupted, which the control unit detects and reports as an error.
  • B1811 → Open circuit in the driver airbag, second stage → This code is specific to airbags with multiple deployment stages and signals an open circuit in the second deployment stage of the driver airbag.

What part numbers are available for the Subaru Ascent WM airbag control unit repair?

For Subaru Ascent WM airbag control unit repairs, Subaru OEM part numbers 98221XC00B and 98221XC00A are the only verified and correct part numbers. These numbers are crucial for finding the correct replacement part and ensuring a smooth repair.

The main OEM part number for the Subaru Ascent WM airbag control module is 98221XC00B. This number is used as a primary reference by Subaru and authorized dealers.

An alternative, also OEM-validated, part number is 98221XC00A, which serves as a compatible variant of the airbag control unit. There are no publicly listed part numbers from third-party suppliers such as Bosch or Continental for this specific module.

Technical specifications of the Subaru Ascent WM airbag control unit

The Subaru Ascent WM airbag control unit is a highly integrated module designed for the 2019 to 2022 Subaru Ascent. It operates on 12V and features a variety of interfaces for monitoring vehicle safety systems and supports OBD-II diagnostics.

This control unit is primarily designed for Subaru Ascent models from 2019 to 2022. It is compatible with variants that feature the EyeSight driver assistance system.

Power is supplied via the vehicle's 12V electrical system. It has several connectors for sensors, belt tensioners, and for connecting to the vehicle diagnostic system.

The airbag control unit supports OBD-II error reading for SRS-specific messages.

Tested remanufactured modules often come with a one-year warranty.

Function and installation position of the Subaru Ascent WM airbag control unit

The Subaru Ascent WM airbag control unit continuously monitors acceleration, side impact, and seatbelt pretensioner sensors to deploy airbags and seatbelt pretensioners within milliseconds in the event of a crash. It is centrally located in the vehicle under the dashboard to ensure optimal sensor connections.

The module precisely detects an accident signal and activates the appropriate airbag modules. It also communicates with other safety systems such as seat belt pretensioners.

In the event of a malfunction, the control unit displays an SRS warning signal in the cockpit and stores error information for workshop diagnosis.

The airbag control unit is usually installed centrally under the dashboard or in the footwell in front of the passenger seat.

Besonderheiten bei der Subaru Ascent WM Airbag-control unit Reparatur

The Subaru Ascent WM airbag control unit stores vehicle-specific data, which is restored during the repair. After the repair, the unit returns with its original vehicle data and is immediately ready for use — no VIN reprogramming necessary.

After an accident in which airbags are deployed, the control unit stores crash data. This data must be erased or the module replaced for the system to function fully again.

Specialized repair services can repair and reset faulty control units, providing a cost-effective alternative to purchasing a new one. Such services often offer a warranty on the work performed.

Module variants may vary slightly depending on vehicle features, such as the presence of the EyeSight system. The correct part number is crucial for a smooth replacement.

4.8

Based on 246 reviews

What our customers say

„Ok.“

Zsolt SzabóZsolt Szabólast week

„Works like a charm!“

LeolyLeoly4 weeks ago

„Everything went perfectly, I can only recommend it.“

Automatically translated · Original: German

ka irgendwaska irgendwas2 days ago

„From the first phone call, the order processing, to the shipping everything was done very quickly and professionally. Now I still have to send the repaired unit to the Swedish workshop and then hopefully the Honda can fi…“

Automatically translated · Original: German

Gerd GoldammerGerd Goldammer2 days ago

„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“

Automatically translated · Original: German

Christian MaegerleinChristian Maegerlein4 days ago

„Everything worked out great! Read out fault memory, sent it in, received offer and sent in the defective control unit. Got it back repaired after 3 days, price exactly as in the offer. It can't get any better 👍“

Automatically translated · Original: German

Toni BuienToni Buien5 days ago

„Uncomplicated service. Fast and thorough. Can only recommend.“

Automatically translated · Original: German

Abdul KSAbdul KS5 days ago

„All great👍“

Automatically translated · Original: German

Edin AvdicEdin Avdic6 days ago

„All great, fast delivery. Thanks.“

Automatically translated · Original: German

Andrej IvanovAndrej Ivanovlast week

„100% satisfied. Everything handled very professionally and transparently. Only the return shipping took too long. This was however due to UPS and less to Aairbag24. Thank you very much“

Automatically translated · Original: German

Dennis WeDennis Welast week

„VAG airbag control unit with error B2000 00 reliably repaired. Price very high in comparison, but everything worked out. No exact protocol of what was carried out, probably just newly flashed“

Automatically translated · Original: German

Tokeh TokehTokeh Tokehlast week

„A great shop, even when there are sometimes problems. There are quick responses and very good help. I can only recommend the shop. Thank you very much“

Automatically translated · Original: German

Sven WegenerSven Wegenerlast week

„Ok.“

Zsolt SzabóZsolt Szabólast week
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