What is a Nissan Sunny B13 airbag control unit and how to repair it?
The Nissan Sunny B13 airbag control unit is the central safety unit in the vehicle, which activates all occupant restraint systems after an accident. A professional repair fixes defects such as crash data or internal errors to restore the safety system's full functionality without having to completely replace the expensive control unit.
It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of all airbag modules and seatbelt pretensioners in the vehicle. This electronic module operates on the 12-volt electrical system of the Nissan Sunny B13.
The control logic of the airbag control unit ensures fast response times and reliable diagnostic functions for error detection and reporting. It is specifically tailored to the vehicle electronics of the Nissan Sunny B13 (built approximately 1990-1996).
Why is the Nissan Sunny B13 airbag control unit defective or broken?
The Nissan Sunny B13 airbag control unit often becomes defective because it stores crash data after an accident, preventing further operation, or because internal components fail due to age and disrupt communication, requiring specialized repair.
Internal electronic defects, such as faulty capacitors or processors, can impair the module's function. These failures typically cause the airbag warning light in the dashboard to stay permanently illuminated.
Often, the control unit isn't physically damaged, but rather stores "crash data" that requires reprogramming or a reset. This also occurs after minor impacts that didn't result in airbag deployment.
Common error codes for Nissan Sunny B13 airbag control unit repair
When repairing a Nissan Sunny B13 airbag control unit, certain error codes directly indicate internal defects or stored crash data in the control unit itself, which allows for targeted repair.
These codes are registered by the airbag ECU and can be read using a diagnostic tool. They indicate specific problems within the control unit that require airbag control unit repair.
- B1000 → Control unit communication error → Problems with data transmission within or with the control unit
- B1054 → ACU configuration error → Incorrect or missing coding of the airbag control unit
- B1052 → Driver airbag module circuit open → Error detected by the control unit in the driver airbag circuit
- B1139 → Control unit defective → Internal hardware or software error in the airbag module
- B1059 → Control unit defective or crash data stored → The module has detected a crash and is blocked or internally faulty
- B1049 → Crash data stored or memory full → After an impact, the control unit memory is blocked
- B1210 → Communication or internal errors → General communication problems or internal system errors
- B1209 → Internal error in the control unit → An unspecified internal hardware or software defect
- B1134 → Airbag control unit error → A general error that requires inspection of the control unit
- B1015 → Internal control unit error → Specific internal error in the module's electronics
- B1035 → Internal control unit error → Another specific internal error code of the airbag control unit
What part numbers are available for the Nissan Sunny B13 airbag control unit repair?
The exact OEM part numbers for the Nissan Sunny B13 airbag control module are difficult to find as they can vary depending on the year and market, but the most common ones that allow for repair are 60514-7600 and 98820-9U10A.
There are no 100% verified, multiple independent sources for a single OEM part number specifically for this older model. However, our workshop can perform repairs for most variants.
The part number 60514-7600 (or 605-14-76-00-95080) is often listed as the airbag module for the Nissan Sunny B13, but primarily comes from reset service providers. Part number 98820-9U10A (or 988209U10A) is also listed for older Nissan Sunny airbag control units.
These numbers are the most likely ones for a Nissan Sunny B13 airbag control unit repair. It is advisable to verify the part number directly on the component or via the vehicle identification number (VIN) at a Nissan dealer before performing any repair or replacement to ensure compatibility.