What is a Nissan Versa C11 airbag control unit?
The Nissan Versa C11 airbag control unit is the central safety unit in your vehicle, precisely activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of a collision or system failure. It continuously monitors various sensors, stores relevant crash data, and ensures the proper functioning of the entire airbag system.
This module is crucial for the safety of vehicle occupants and an integral part of the passive safety system. It processes signals from acceleration sensors and occupancy detection to trigger appropriate safety measures when necessary.
It also includes a diagnostic interface that detects and stores errors in the airbag system and indicates the need for a "Nissan Versa C11 airbag control unit repair."
Why is the Nissan Versa C11 airbag control unit defective?
A Nissan Versa C11 airbag control unit often malfunctions because it stores crash data after an accident, signaling a system fault, or due to internal electronic malfunctions that activate the SRS warning light and disable the system. This requires a professional "Nissan Versa C11 airbag control unit repair" or replacement.
After an airbag is deployed, the control unit stores indelible crash data that prevents the system from continuing to function.
Internal component defects, voltage spikes, or age-related wear and tear can also lead to module failures.
Communication errors with other vehicle control units or corruption of the internal memory are other typical causes of malfunction of the airbag control unit.
Common error codes for Nissan Versa C11 airbag control unit repair
Nissan Versa C11 airbag control module repairs will result in specific error codes that indicate internal problems with the module, not with sensors or other components. These codes require precise diagnostics to identify and correct the exact cause of the malfunction in the airbag system.
- B1000/31 → Central airbag sensor unit error → Indicates an internal defect in the control unit.
- B1239 → Airbag diagnostic sensor unit defective → Affects the internal diagnostic function of the control unit.
- B1499 → SRS-ECU detects deployed airbag → Signals stored crash data after an accident.
- B1620 → Internal Error – Replace Control Module → Often requires a professional "Nissan Versa C11 Airbag Control Module Repair" of the module.
- B1650 → Accident recording 1st level (front) → Documents a minor frontal impact in the module.
- B167000 → Accident recording full level (front) → Stores crash information of a severe frontal impact.
- 65535 → Internal memory error (intermittent) → Indicates internal memory corruption.
- 5-1 → Internal failure of the SRS control unit → A manufacturer-specific code for module failure.
- 9-1 → SRS control unit internal failure → Another code for an internal defect in the control unit.
What part numbers are available for the Nissan Versa C11 airbag control unit repair?
For Nissan Versa C11 airbag control unit repairs, exact OEM part numbers are crucial, as the module is programmed specifically for the vehicle, and only the correct number ensures full compatibility. These numbers identify the exact control unit for your Nissan Versa C11 model.
Only the use of 100% verified and compatible OEM part numbers ensures proper function after the "Nissan Versa C11 Airbag Control Unit Repair".
- 98820-9KA0A → Nissan (OEM) → Genuine Nissan airbag control unit for Versa C11 (approx. 2013-2014).
- 0285011209 → Bosch (OEM) → An alternative OEM supplier number, identical to 98820-9KA0A.
- 98820-3WC0A → Nissan (OEM) → Another genuine Nissan part number for the Versa C11 airbag module.
- 0 285 011 125 → Bosch (OEM) → The corresponding Bosch number for Nissan part number 98820-3WC0A.
Technical specifications for the Nissan Versa C11 airbag control unit repair
The technical specifications of the Nissan Versa C11 airbag control unit include precise monitoring of all crash sensors, the ability to store diagnostic codes, and a robust construction for in-vehicle use. These are crucial factors for a successful Nissan Versa C11 airbag control unit repair that restores safety.
The control unit operates with a typical 12V vehicle electrical system voltage and communicates with other vehicle components via the CAN bus.
It is designed for extreme operating temperatures from -40 °C to +85 °C and is physically compact for placement in the vehicle interior.
The built-in diagnostic interface enables fast and efficient error detection and system testing.
Functionality and advantages of Nissan Versa C11 airbag control unit repair
The Nissan Versa C11 airbag control unit continuously monitors various crash sensors and controls the deployment of airbags and seatbelt pretensioners in an emergency. Professional Nissan Versa C11 airbag control unit repair ensures that this vital system is fully functional again after an accident or internal defect, and that error codes are cleared.
It stores all diagnostic and error codes in the crash diagnostic memory that need to be reset after a repair.
By repairing instead of completely replacing, costs can be saved and sustainability can be promoted.
Proper repair and calibration ensures that the airbag system protects against malfunctions and prevents unwanted deployments.
Installation position and connections of the Nissan Versa C11 airbag control unit
The airbag control unit in the Nissan Versa C11 is typically installed under the front driver's seat or in the center console to ensure short and protected cable routes. This installation position is optimized for centralized recording of impact information and efficient connection to all relevant sensors and airbag modules.
It has several multi-pin connectors for the power supply, signal lines to sensors and airbag modules, and the CAN bus.
Safe installation requires proper battery disconnection and avoiding static charge to prevent damage.
A diagnostic port allows connection to workshop equipment for system checks and resets after a "Nissan Versa C11 airbag control unit repair".
Compatible models and features of the Nissan Versa C11 airbag control unit repair
The airbag control unit is specifically compatible with the first-generation Nissan Versa (model C11), built approximately from 2011 to 2019. A professional "Nissan Versa C11 airbag control unit repair" is essential for these models after an airbag deployment or system failure to restore the safety system to full operational readiness.
The repair includes not only resetting error codes but also replacing defective internal components to ensure long-term reliability.
Variants of the control unit may differ slightly depending on vehicle equipment or regional specifics (e.g. North America/Europe).
Modern variants are compatible with advanced Nissan safety features such as airbag occupancy sensors and integrated crash detection systems, which are recalibrated after repair.