What is a Nissan Serena C26 airbag control unit?
The Nissan Serena C26 airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules. A professional Nissan Serena C26 airbag control unit repair will restore full safety.
This module, also called the SRS module, is the brain of the passive safety system in your Nissan Serena C26. It receives signals from impact sensors and decides in milliseconds whether to activate the protection systems.
Its precise functionality is crucial for providing optimal protection to occupants in the event of an accident. Therefore, the proper functioning of the airbag control unit is non-negotiable, and any defect requires immediate repair.
Why is the Nissan Serena C26 airbag control unit defective?
A Nissan Serena C26 airbag control unit can fail because it stores crash data after an accident, triggering a fault condition. Internal electronic errors, surges, or age-related wear and tear on components can also lead to failure. A necessary Nissan Serena C26 airbag control unit repair will permanently resolve these problems.
After an impact, the control unit stores indelible crash data, which activates the airbag warning light and disables the system. This requires a specialized reset service to restore functionality.
Other causes of failure can include internal short circuits, software errors, or moisture damage. A defective module will cause the airbag system to no longer function properly or the warning light to remain permanently illuminated, requiring immediate repair.
Common error codes for Nissan Serena C26 airbag control unit repair
During Nissan Serena C26 airbag control unit repairs, specific error codes occur that directly indicate problems with the control unit. These codes are crucial for accurate diagnosis because they are not caused by external sensors, but rather by internal malfunctions or stored events within the module itself.
The accurate interpretation of these DTCs (Diagnostic Trouble Codes) is essential to identify the cause of a failure and initiate the necessary steps for airbag control unit repair.
Here are some of the most common ECU-specific error codes that may occur on your Nissan Serena C26:
- B1015 → Airbag system faulty (control unit defective) → Internal error in the airbag control unit.
- B1139 → Airbag control module error → Internal software or hardware error of the module.
- B1193 → Airbag module related error → Malfunction detected directly in the airbag control unit.
- B1206 → Airbag RCM (Restraint Control Module) Error → Problem in the restraint system control module.
- B1342 → SRS system error → General error in the SRS control module or its communication.
- B1620 → SRS Error → System error indicating a malfunction of the SRS control unit.
- B1649 → Crash detected (crash data in the control unit) → Stored collision data requires a reset of the module.
- B1000 → Control unit communication error → Communication fault with the airbag control unit.
What part numbers are available for the Nissan Serena C26 airbag control unit repair?
For Nissan Serena C26 airbag control unit repairs, there are several exact OEM part numbers that ensure the module's compatibility with your vehicle model. These numbers, both from Nissan and from supplier Bosch, are crucial for correct identification and successful restoration of safety functions.
It is essential to check the exact part number of your airbag control unit to ensure that the repair or replacement is performed with the correct component.
Faulty parts can lead to further problems or non-detection by the vehicle's system. Here are the verified OEM part numbers for the Nissan Serena C26 airbag control unit:
- 98820-5TF0B (Nissan OEM)
- 0 285 014 205 (Bosch supplier)
- 95640 (Bosch supplier)
- 98820AV200 (Nissan OEM)
- 98820AV21A (Nissan OEM)
- 98820-AV200 (Nissan OEM)
- 98820-AV21A (Nissan OEM)
What are the technical specifications of the Nissan Serena C26 airbag control unit?
The Nissan Serena C26 airbag control unit is designed to control and monitor the airbag and seatbelt pretensioner systems. It supports comprehensive diagnostic functions, communicates via the CAN bus, and precisely monitors sensor signals to ensure occupant safety in an emergency and enable reliable Nissan Serena C26 airbag control unit repair.
The unit is capable of reading DTCs, clearing errors, and monitoring real-time data streams. It is powered by the vehicle's electrical system and continuously checks voltage levels.
Integrated monitoring of seat occupancy sensors and airbag firing circuits is standard. The control unit has specific firmware tailored to the vehicle model and year of manufacture, making it a complex component that requires specialist expertise to repair.
Installation position and compatibility of the Nissan Serena C26 airbag control unit
The Nissan Serena C26 airbag control unit is typically located in the lower section of the dashboard or in the center console and is securely held in place by several screws. It is suitable for the Nissan Serena C26, model years 2012 to approximately 2016, and serves as an OEM replacement part for various markets.
This central location protects the module from moisture and mechanical stress. It features multi-pin connectors for the power supply, CAN bus connections, and sensor connections.
Compatibility extends to all Nissan Serena C26 vehicles equipped with this airbag system as standard. After a Nissan Serena C26 airbag control unit repair or replacement, the used control unit must be re-trained using Nissan diagnostic tools to correctly activate all safety functions.