What is a Daewoo BH 120i airbag control unit?
The Daewoo BH 120i airbag control unit is the central electronic unit essential for occupant safety in the event of a collision. It continuously monitors sensors, evaluates this data, and deploys the airbags and seatbelt pretensioners as needed to prevent serious injuries. After an accident, it stores important crash data.
This specialized SRS control unit is designed to precisely control the functions of the passive safety system.
It integrates a microcontroller, sensor connections and a diagnostic interface to ensure smooth communication in the vehicle.
Why is the Daewoo BH 120i airbag control unit defective?
The Daewoo BH 120i airbag control unit is typically classified as "defective" because it stores crash data after an accident and locks itself for safety reasons to prevent accidental deployment. Internal hardware or software errors, voltage spikes, or age-related wear can also lead to failure, necessitating repair.
After an impact, the control unit creates a crash data record and switches off the airbag system.
This prevents the system from being triggered again without verification and requires a reset or repair.
Other reasons for a defect can be internal component failures, such as damaged capacitors or processors.
An incorrect diagnosis or sporadic communication errors can also cause the control unit to report as "broken."
Common error codes for Daewoo BH 120i airbag control unit repair
Specific error codes for the Daewoo BH 120i airbag control unit are not available in publicly accessible professional databases with precise verification. Therefore, a precise diagnosis always requires reading the control unit with a professional diagnostic system, as the codes are manufacturer-specific and depend on the hardware and firmware version.
- System error: May indicate internal defects in the control unit and requires a detailed diagnosis by a specialist.
- Crash data active: Means that the control unit is blocked after an accident and requires a reset or repair.
- Sensor failure: Indicates problems with the impact or acceleration sensors that the control unit cannot correctly evaluate.
- Communication error: Indicates that the control unit cannot communicate properly with other systems in the vehicle.
- Belt pretensioner/airbag resistance too high/low: Indicates an open or short circuit in the firing circuit of an airbag or belt pretensioner.
What part numbers are available for the Daewoo BH 120i airbag control unit repair?
There are currently no 100% verified or matching OEM part numbers for the Daewoo BH 120i airbag control unit available in the professional and official sources searched. Exact identification requires a direct inquiry to Daewoo dealers, specialized workshops, or reading the number directly from the unit itself.
Common spare parts catalogs such as TecDoc do not list specific or verifiable OEM part numbers for this model and control unit.
Autoliv, as a leading airbag specialist, also does not have any appropriately listed airbag control unit numbers for the Daewoo BH 120i.
However, the exact part number is crucial for a successful repair and restoration of functionality.
For precise identification, it is recommended to use the vehicle's chassis number (VIN) or read the part number directly from the installed control unit.
A professional diagnosis in a workshop can also identify the exact OEM number of the original control unit.