What is a Nissan March K14 airbag control unit?
The Nissan March K14 airbag control unit is the central safety unit that controls all occupant restraint systems in the event of an accident. It monitors sensors, collects crash data, and ensures the precise deployment of airbags and seatbelt pretensioners. This essential module is vital to vehicle safety in the Nissan March K14.
This electronic module is specifically designed for the body structure and electrical systems of the Nissan March K14 (also known as Micra K14, built circa 2017 to 2022).
It ensures that the airbags respond correctly and promptly in an emergency, which is crucial for occupant safety.
The function of the control unit includes the permanent monitoring of the connected sensors and communication via the CAN bus with other vehicle systems.
Proper functioning is therefore critical for the overall active and passive safety of the vehicle.
Why is the Nissan March K14 airbag control unit defective?
The Nissan March K14 airbag control unit is often reported as defective after an accident because it stores crash data, requiring a system repair or reset. Internal electronic errors or communication problems with other vehicle components can also cause failure, necessitating immediate repair or replacement.
After a vehicle impact, the airbag control unit irrevocably stores crash data, which results in the module being locked.
A repair that involves deleting this data is then a cost-effective and effective solution to make the control unit usable again.
Even without an accident, the control unit may be defective, for example due to age-related corrosion on the contacts or internal software errors.
Such failures often manifest themselves as an illuminated airbag warning light in the dashboard and require a precise diagnosis.
A faulty control unit can impair the proper functioning of the entire airbag system and represents a serious safety vulnerability.
A quick diagnosis and repair are therefore essential to restore safety in the Nissan March K14.
Common error codes for Nissan March K14 airbag control unit repair
When a Nissan March K14 airbag control unit repair is necessary, specific error codes will appear that directly indicate problems with the control unit itself. These codes often signal internal defects or communication problems and are crucial for a precise diagnosis to specifically repair the airbag control unit.
- B1239 → Airbag Control Module – Airbag control module error → Internal malfunction of the control module, requires repair or reset.
- B1414 → Airbag control unit – Airbag computer module error → Error in the computer module of the control unit, typically a reset is necessary.
- U1010 → Airbag Control Unit (CAN communication error on the control unit) → Malfunction in data communication via the CAN bus to the control unit.
- B1000 → Control unit communication error → General communication problem within or with the control unit.
These error codes are exclusive to the Nissan March K14 airbag control unit and explicitly exclude problems with sensors, belt pretensioners, or airbag modules.
They are crucial for targeted diagnostics that focus exclusively on the control unit itself.
Reading these codes is the first step in determining if a Nissan March K14 airbag control unit repair is necessary.
This is the only way to identify the exact cause of the failure and resolve it professionally.
What part numbers are available for the Nissan March K14 airbag control unit repair?
For Nissan March K14 airbag control unit repair, two validated part numbers are primarily relevant: Nissan OEM part number 98820BC500 and Bosch supplier part number 0 285 001 853. These are the only confirmed and exact numbers for the K14 model (2017-2022) and are crucial for a successful repair or replacement.
Nissan OEM part number 98820BC500 is the official genuine replacement part number issued directly by Nissan for the Micra (K14) airbag control unit.
This number guarantees the exact fit and compatibility with your vehicle model.
As an original equipment manufacturer, Bosch supplies the control unit under part number 0 285 001 853, which acts as the manufacturer's part number.
This Bosch number is directly mapped to the Nissan OEM number and is also specifically validated for the K14 model.
No other 100% verified or OEM-valid alternative part numbers from other manufacturers (such as Continental or Siemens) for the Nissan March K14 airbag control unit could be found.
This underlines the specificity and exclusivity of these two numbers for your model.
When repairing a Nissan March K14 airbag control unit, it is crucial to use the correct part number to restore full functionality and safety.