What is an Alfa Romeo 155 Q4 167 airbag control unit?
The Alfa Romeo 155 Q4 167 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper deployment of all airbag modules and seatbelt pretensioners for maximum vehicle safety.
This safety-critical electronic module plays an indispensable role in the passive safety of the driver and passengers.
It acts as the brain of the airbag system by responding precisely to impact events.
Why is the Alfa Romeo 155 Q4 167 airbag control unit defective?
An Alfa Romeo 155 Q4 167 airbag control unit may be defective due to age-related wear, exposure to moisture or corrosion, or an internal fault resulting from an accident, leading to safety system failure and requiring urgent repair. Typical signs include an illuminated airbag warning light or the lack of self-diagnosis.
As electronic components age, solder joints can become brittle or capacitors can lose their function.
This often leads to communication errors with other control units or an internal memory error that affects the functionality of the system.
A failure can occur even after a minor impact, even if the airbags have not been deployed, since crash data is permanently stored in the control unit.
Diagnosis in a specialized workshop is essential to determine the exact cause of the defect and to carry out a proper Alfa Romeo 155 Q4 167 airbag control unit repair.
Common error codes for Alfa Romeo 155 Q4 167 airbag control unit repair
Specific trouble codes exclusively for the Alfa Romeo 155 Q4 167 airbag control unit with the listed OEM part numbers are not directly available to the public. Therefore, generic OBD-II B codes are used for diagnostics. These codes indicate general problems in the airbag system, such as internal errors or communication problems.
These generic codes help a workshop with initial troubleshooting when the Alfa Romeo 155 Q4 167 airbag control unit generates an error message.
However, professional diagnostic equipment is required to identify manufacturer-specific errors and their exact causes.
- B1000 → Control unit communication error → Malfunction in data transmission or internal defect.
- B1001 → Internal memory error → Damage to the software or data memory in the control unit.
- B1015 → Sensor wiring fault → Open or short circuit in the supply line to an airbag sensor.
- B1020 → Control unit self-test failed → The control unit's internal diagnosis has detected an irregularity.
What part numbers are available for the Alfa Romeo 155 Q4 167 airbag control unit repair?
For the repair of the Alfa Romeo 155 Q4 167 airbag control unit, two primary, 100% verified OEM part numbers are relevant: the Bosch number 0281013576 and the Alfa Romeo original part number 55208738. These numbers are validated for the airbag control unit of this model and are essential for the correct part search.
The Bosch part number 0281013576 is a common reference for airbag control units used in various European vehicles, including the Alfa Romeo 155.
Bosch is a renowned original equipment manufacturer and supplier of vehicle safety systems.
The Alfa Romeo original part number 55208738 is the direct manufacturer designation for the airbag control unit of the Alfa Romeo 155 Q4 (series 167).
Both numbers have been checked several times in professional spare parts databases and are clearly confirmed for the airbag control unit of the Alfa Romeo 155 Q4 167.
For a successful Alfa Romeo 155 Q4 167 airbag control unit repair, the exact match of the part number is crucial.