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Jaguar XJ X300 airbag control unit repair
Jaguar XJ X300 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.
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Repair type
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Not sure? Just send us an enquiry or give us a call — we're happy to advise you.
4.8Google reviews of our shop(246)
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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.
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.
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
4.8Based on 246 reviewsView all reviews →
Works like a charm!
Everything went perfectly, I can only recommend it.
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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 finally pass the HU there again (failed because of the red light for the airbag). Today the message came from SWE, the car is running again, the red light is off and the HU was also passed. Once again many thanks for the help in need. Keep it up and maybe word will also spread in SWE that Airbag 24 does great work. Regards Gerd
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Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!
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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 👍
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What is a Jaguar XJ X300 airbag control unit?
The Jaguar XJ X300 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors crash sensors and seatbelt pretensioners, stores important crash data, and is essential for the correct deployment of the airbag modules to ensure vehicle occupant safety.
This module, also called the Restraint Control Module (RCM), is the core of the Supplemental Restraint System (SRS) in your Jaguar.
It operates as a standalone control unit and is not integrated into other vehicle systems.
Why is the Jaguar XJ X300 airbag control unit defective?
A Jaguar XJ X300 airbag control unit can fail due to internal electronic errors, voltage fluctuations, or poor ground connections. Even after an airbag deployment, the module is often considered "defective" because it stores crash data and is then no longer functional or requires extensive repair.
Often, a loose attachment of the control unit or a voltage outside the tolerance range leads to internal malfunctions.
Corrosion or poor ground connections can also cause the module to fail and require a Jaguar XJ X300 airbag control unit repair.
After an accident where airbags deployed, the control unit typically needs professional reset. After repair, the module functions immediately as plug-and-play without further programming.
Common error codes for Jaguar XJ X300 airbag control unit repair
When repairing a Jaguar XJ X300 airbag control unit, specific error codes are crucial for identifying the root cause of a problem. These codes directly indicate internal module malfunctions or faults in its immediate wiring and ground connection, allowing for a precise diagnosis.
- 12 (B1342) → Restraint Control Module - internal error / internal failure → Causes: loose fastening of the control unit, battery voltage out of range, poor ground connections (Ground Points: G07AL, G07AR, G07BS, G07AS).
- 14 (B1921) → Restraint Control Module - open circuit or high resistance at the bracket ground connection → Causes: poor connection or corrosion on the bracket.
- 18 (B1884) → Passenger Air Bag Deactivation (PAD) warning light - open circuit or short to ground at the PAD warning indicator → Causes: Fault in the wiring harness or connectors.
For a correct diagnosis and subsequent Jaguar XJ X300 airbag control unit repair, specialized diagnostic devices are required that can read Jaguar-specific flash codes.
Error codes for sensors or belt tensioners must be distinguished from these specific control unit codes.
What part numbers are available for Jaguar XJ X300 airbag control unit repair?
For the Jaguar XJ X300 airbag control unit repair, the manufacturer numbers HNA9670BA and JDE2436 are on file for this repair product. They belong to airbag control units of this model. The part number is printed on the label of the airbag control unit and can be stated in the repair order.
Please compare the number on the label of your unit with these numbers before you create the repair order.
Technical details and installation of the Jaguar XJ X300 airbag control unit
The Jaguar XJ X300 airbag control unit is a robust, safety-critical component designed for Jaguar XJ (X300) model years 1994-1997. For successful Jaguar XJ X300 airbag control unit repair, precise knowledge of installation position and connections is required. The repaired module requires no additional programming and works immediately after reinstallation.
The control unit is typically used in variants for 4.0-liter models such as the XJ6 4.0 Sovereign and is also compatible with the technically similar X330.
It continuously monitors signals from the crash sensors and precisely triggers the airbags and seat belt pretensioners in the event of an accident.
Each module is factory programmed to the specific vehicle identification number (VIN), which makes it difficult to use used modules without problems.
After reset by a specialized workshop, the control unit recovers its original programming and functions immediately without requiring recoding.
The airbag control unit is mounted inside the vehicle, often under the driver or passenger seat or in the center console to ensure optimal signal paths.
It has two or more multi-plug connectors, usually black and gray, for all necessary sensor and actuator connections.
The installation or Jaguar XJ X300 airbag control unit repair requires that the vehicle battery be disconnected beforehand to avoid accidental airbag deployment.
Unlike newer Jaguar models, the X300 system is not CAN bus integrated, which requires specialized diagnostic equipment for troubleshooting.
4.8
Based on 246 reviews
What our customers say
„Ok.“
Zsolt Szabólast week„Works like a charm!“
Leoly4 weeks ago„Everything went perfectly, I can only recommend it.“
Automatically translated · Original: German
ka 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 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 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 👍“
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Toni Buien5 days ago„Uncomplicated service. Fast and thorough. Can only recommend.“
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Abdul KS5 days ago„All great👍“
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Edin Avdic6 days ago„All great, fast delivery. Thanks.“
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Andrej 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“
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Dennis 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“
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Tokeh 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“
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Sven Wegenerlast week„Ok.“
Zsolt Szabólast week
