What is an Infiniti FX45 S50 airbag control unit?
The Infiniti FX45 S50 airbag control unit is your vehicle's central safety unit, instantly activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors and stores important crash data, ensuring the proper functioning of all airbag modules and passenger safety.
This critical control unit (SRS module) is specifically designed for the Infiniti FX45 of the S50 model series (model years 2003-2008). It receives signals from impact sensors and decides in milliseconds whether to optimally trigger the protection systems.
Proper functionality is essential for your safety. In the event of a defect or failure, a professional Infiniti FX45 S50 airbag control unit repair is essential to restore full protective functionality.
Why is the Infiniti FX45 S50 airbag control unit defective?
The Infiniti FX45 S50 airbag control unit often fails after an accident because it permanently stores crash data, necessitating reprogramming or replacement. Internal memory errors, voltage problems, or defective components can also lead to failure, requiring immediate repair.
A common cause of a malfunction is the storage of hard crash data after an accident that cannot be easily reset. This blocks the system's functionality and requires a specialized Infiniti FX45 S50 airbag control unit repair.
Internal electronic errors such as memory problems (EEPROM errors) or voltage fluctuations can also lead to control unit failure. The airbag warning light in the cockpit then signals a malfunction and requires immediate diagnosis at a workshop.
Sometimes, signs of aging or water damage are the cause of a failure. A precise diagnosis is crucial to determine whether the defective airbag control unit needs to be repaired or replaced.
Common error codes for Infiniti FX45 S50 airbag control unit repair
During an Infiniti FX45 S50 airbag control unit repair, specific OBD-II B codes are read, which provide direct clues to control unit errors and enable a precise diagnosis. These trouble codes help identify communication, memory, or voltage defects in the airbag control unit.
- B1000 → Control unit communication error → Communication to the airbag control unit is disrupted.
- B1049 → Airbag control unit – internal memory error → Problem in the internal data memory of the airbag control unit.
- B1054 → Airbag control unit voltage error → Insufficient or faulty voltage supply to the control unit.
- B1022 → Airbag control unit self-test error → Internal function self-test of the airbag control unit failed.
- B1351 → Airbag control unit EEPROM error → Error in the EEPROM memory of the airbag control unit, often after a crash.
- B1462 → Airbag control unit diagnostic error → General internal diagnostic error in the airbag control unit.
These error codes directly indicate problems with the airbag control unit and are crucial for a targeted Infiniti FX45 S50 airbag control unit repair. They allow the repair shop to pinpoint the exact cause of the failure.
After reading the codes with a suitable scanner, the airbag control unit must be repaired or replaced if necessary. Programming to the vehicle's VIN is often necessary to permanently eliminate the error messages.
What part numbers are available for the Infiniti FX45 S50 airbag control unit repair?
For a successful Infiniti FX45 S50 airbag control unit repair, accurate OEM part numbers are crucial to ensure compatibility and functionality. The primary part number for the airbag control unit is 988208Y70A, while Y8EHM-CL70A is a relevant replacement number for specific airbag modules.
The most documented and validated OEM part number for the airbag control unit (SRS airbag computer) in the Infiniti FX45 S50 is **988208Y70A**. This number is relevant for models in the S50 series, including the FX45, and is often mentioned in connection with the FX35.
**Y8EHM-CL70A** is relevant as an alternative original spare part number for a specific side airbag module. Although this is not a dedicated control unit, it can play a role in the repair of airbag components on the FX45 S50.
For the Infiniti FX45 S50 airbag control unit repair, it is essential to match the part number of the defective module with the numbers listed here. After a replacement, the new or repaired control unit usually needs to be programmed to the vehicle's VIN to ensure proper function.