What is a Nissan Versa C13 airbag control unit?
The Nissan Versa C13 airbag control unit is the central safety unit that instantly activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of all components of the vehicle's Supplemental Restraint System (SRS) to provide maximum safety.
This module, also called the SRS control unit, serves as the brain of the airbag system. It receives signals from impact, seat occupancy, and seat belt pretensioner sensors.
Based on this data, the control unit decides in milliseconds whether to precisely trigger the corresponding airbags and belt tensioners.
Why is the Nissan Versa C13 airbag control unit defective?
The Nissan Versa C13 airbag control unit becomes defective because it permanently stores crash data after an accident that needs to be erased, or internal components such as the memory chip are damaged. Moisture ingress, power surges, or age-related wear can also lead to failures that require repair or replacement.
Because the airbag control unit stores crash data after deployment, the airbag warning light remains active and the system is no longer functional.
Even without an accident, the Nissan Versa C13 airbag control unit can break down, for example due to internal electronic defects or errors in the power supply.
A professional diagnosis is essential to find the exact cause of the control unit failure and to perform the necessary Nissan Versa C13 airbag control unit repair.
Common error codes for Nissan Versa C13 airbag control unit repair
During Nissan Versa C13 airbag control module repair, specific error codes indicate problems with the control module itself. These codes are often generated after an accident or due to internal malfunctions and indicate that a reset or repair of the module is necessary to restore the vehicle's safety functions.
- B1000 → Control unit communication error → Indicates problems with the CAN or LIN bus communication of the airbag ECU.
- B1002 → Diagnosis Sensor Unit Error in the airbag control unit (crash data) → Indicates stored crash data or internal diagnostic errors that require a reset.
- B1003 → Airbag control module internal memory error → Indicates damage or corruption of the internal memory in the module.
- B1010 → Airbag control unit supply voltage error → Affects the voltage supply of the airbag module and can be caused by faulty power supply.
- B1020 → Communication bus error in the airbag control unit → Indicates problems in the internal data bus or the networking with other control units.
- B1100 → Short circuit/open circuit in the airbag circuit (control unit) → Is set when there is a short circuit or an open circuit directly in the circuit controlled by the control unit.
What part numbers are available for the Nissan Versa C13 airbag control unit repair?
For Nissan Versa C13 airbag control unit repair, specific OEM part numbers are critical to ensure compatibility with your C13-generation vehicle model. These numbers identify the correct airbag control unit used in the Nissan Versa from approximately 2019 to 2024, enabling a smooth restoration of the safety systems.
The following genuine OEM part numbers are confirmed for the Nissan Versa C13 airbag control module and can be used for replacement or repair.
These numbers are taken from professional databases and cover the Versa C13 models equipped with the HR16DE 1.6L engine.
- 28556-9KM0A → Nissan/Autoliv → A primary original part number for the airbag control module on the Nissan Versa C13.
- 28556-9KN1B → Nissan/Autoliv → Another original and compatible part number for the airbag control unit of the Nissan Versa C13.
- 98820-5ES0B → Nissan → An additional original OEM number often mentioned in the context of airbag module reset services for the Versa C13.
No alternative aftermarket replacement parts have been found that offer this OEM quality for the control unit; therefore, these numbers are authoritative.
Key Features and Specifications of the Nissan Versa C13 Airbag Control Unit
The Nissan Versa C13 airbag control unit is essential for the vehicle's active and passive safety, processing all sensor data in real time and precisely deploying the airbags and seatbelt pretensioners in the event of a collision. Its advanced diagnostic capabilities continuously monitor the entire SRS system to ensure flawless operation and vehicle safety.
The control unit controls and monitors the entire Supplemental Restraint System (SRS), which includes front, side and curtain airbags.
It processes data from various sensors, including crash sensors, seat occupancy sensors and seat belt detection sensors, to enable customized deployment.
The module can be repaired or reset in the event of a fault, which is a cost-effective alternative to buying a new one and makes the Nissan Versa C13 airbag control unit repair easier.
For installation and professional diagnosis, it is strongly recommended to consult specially trained workshops or Nissan authorized workshops in order not to endanger vehicle safety.