What is a Nissan Moco MG21S airbag control unit?
The Nissan Moco MG21S airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle, which is critical for safety and requires professional repair.
This module, also known as the SRS module, is manufactured by Nissan or Denso as an OEM component and is responsible for controlling the airbag system.
It collects impact data, activates airbag sensors, and deploys the airbags in the event of a collision. Repairing the Nissan Moco MG21S airbag control unit can restore full functionality after deployment.
Why is the Nissan Moco MG21S airbag control unit defective?
The Nissan Moco MG21S airbag control unit often fails because it stores crash data after an accident or has an internal software error that activates the airbag warning light. In this case, the system can no longer ensure occupant safety and must be sent in for repair.
A common cause of failure is the storage of collision data after an accident, even if no airbags were deployed. This causes the control unit to lock and the airbag warning light to illuminate.
Internal errors, voltage spikes, or age-related wear and tear can also cause the module to malfunction. In such cases, professional diagnosis and repair of the Nissan Moco MG21S airbag control unit is essential.
A defective control unit can impair the functionality of the entire airbag system. Repairing it is often a cost-effective alternative to purchasing a new one, making the airbag operational again.
Common error codes for Nissan Moco MG21S airbag control unit repair
When repairing the Nissan Moco MG21S airbag control unit, specific error codes will occur that point directly to the ECU. These codes indicate that the control unit itself is malfunctioning, needs a reset, or is experiencing communication issues, allowing for targeted diagnostics.
- B1239 → Airbag control unit (bad airbag computer) → Needs ECU reset or repair.
- B1414 → Airbag control module module error → Requires return of the airbag module for repair/reset.
- U1010 → Airbag control unit communication error (CAN bus) → Indicates ECU-specific communication problems.
These error codes are exclusively due to problems with the airbag control unit itself. They help the workshop accurately diagnose the problem and determine whether repairs are necessary.
An OBD-II airbag scanner with Nissan support is necessary to read these codes and perform a thorough fault diagnosis on the Nissan Moco MG21S.
What part numbers are available for the Nissan Moco MG21S airbag control unit repair?
Two 100% verified OEM part numbers are relevant for the Nissan Moco MG21S airbag control unit repair: 38910-58J20 from Nissan/Denso and 28555N from Denso. These numbers confirm the originality of the component and are essential for correct identification in the event of a failure or for repair.
Part number 38910-58J20 is listed as the original airbag controller for the Nissan Moco MG21S. It is compatible with professional reset services and confirms its Denso origin.
Additionally, part number 28555N is listed in the official Nissan EPC database for the MG21S as the airbag diagnostic control unit. Both numbers are specific to the airbag control unit and not to other components such as sensors.
This precise part number mapping is crucial for successful diagnosis and repair of the airbag control unit. It ensures that the correct module for the Nissan Moco MG21S is addressed to correct a fault.