What is a Maserati Quattroporte I airbag control unit?
The Maserati Quattroporte I airbag control unit is the central safety unit in your vehicle, instantly activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, stores relevant crash data, and is essential for the correct and reliable functioning of the entire airbag system to ensure maximum occupant safety.
This module, often called the SRS Control Module, is responsible for collecting and analyzing vehicle data such as deceleration. It compares measured actual values with preprogrammed thresholds.
In the event of an accident, the control unit deploys the airbags, ensuring the safety of the vehicle's occupants. A Maserati Quattroporte I airbag control unit repair can restore functionality after an accident.
Why is the Maserati Quattroporte I airbag control unit defective?
A Maserati Quattroporte I airbag control unit often becomes defective because it has stored crash data after an accident that requires a system reset, or it has internal software and memory errors that can impair communication capabilities and prevent airbags from deploying, requiring professional repair of the unit.
Common causes of a defect include stored crash data after a collision, which requires recalibration or a reset of the module. This causes the airbag warning light in the dashboard to illuminate.
Internal electronic failures, such as a faulty EEPROM or software problems, can also cause the control unit to fail. Such errors make a Maserati Quattroporte I airbag control unit repair essential, as they impair functionality.
Communication errors or problems with the power supply can also cause the airbag control unit to no longer work correctly, making a diagnosis in the workshop necessary.
Common error codes for Maserati Quattroporte I airbag control unit repair
Repairing a Maserati Quattroporte I airbag control unit often requires diagnosing specific error codes that directly indicate problems with the control unit itself and require professional repair of the module rather than simply replacing peripheral sensors to restore safety.
- B1000 → Control unit communication error → The module cannot communicate with other systems.
- B1008 → Driver airbag circuit error → The control unit detects a problem with the driver airbag module.
- B1009 → Passenger airbag circuit fault → The control unit reports a fault in the passenger airbag module.
- B1010 → Internal memory error in the airbag control unit → The EEPROM or the internal memory of the module is damaged.
- B1020 → Control unit power supply error → The control unit is not receiving the correct electrical supply.
- B1035 → Software error or memory checksum error → ECU software integrity problems.
- B1050 → Crash data stored in the control unit (Crash Data) → The module has registered an accident and is locked.
- B1055 → Error after reset, control unit requires reset → The module was not reset correctly or requires another reset.
What part numbers are available for the Maserati Quattroporte I airbag control unit repair?
For the Maserati Quattroporte I airbag control unit repair, several specific OEM part numbers are relevant, ensuring exact compatibility and are essential for replacing or repairing the defective module to restore your vehicle's safety systems to full functionality.
The most common and confirmed OEM part number for the Maserati Quattroporte I (M139) airbag control unit is 373301167. This number is often also listed as a TRW part number, indicating the original equipment manufacturer.
Another verified Maserati OEM part number for this model is 190828. Both are unique to the Quattroporte I airbag control units.
Part number 670009490 is also a Maserati OEM number that appears in later Quattroporte models (2013-2016), but may also be relevant for repair purposes on the M139.
For the Maserati Quattroporte I airbag control unit repair, the used, original part number 213337 can also be considered, which offers an alternative to purchasing a new one. These parts have all been verified as control units (airbag ECUs) and are not sensors or other components.