What is a Hyundai Santa Fe SM airbag control unit?
The Hyundai Santa Fe SM 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 and seatbelt pretensioners in the vehicle to provide maximum safety.
This SRS control unit is essential for occupant protection in the first-generation Hyundai Santa Fe SM (approximately 2000-2006). It coordinates the deployment of airbags and seatbelt pretensioners in the event of a collision.
It is compatible with various engine variants, including the 2.0 CRDi, 2.7 V6, and 2.0 GLS CRDi. The specific software is adapted to the specific vehicle and equipment.
Why is the Hyundai Santa Fe SM airbag control unit defective?
The Hyundai Santa Fe SM airbag control unit often becomes faulty because irreversible crash data is stored after an accident, causing a malfunction and permanently illuminating the airbag warning light. These hard codes prevent normal system functionality until a professional Hyundai Santa Fe SM airbag control unit repair is performed.
Because the internal memory is full or communication errors occur, the control unit can no longer function correctly. This often leads to the failure of the entire safety system.
A faulty control unit can also be affected by overvoltage or moisture damage. Such defects require specialized diagnosis and repair by a specialist workshop.
Common error codes for Hyundai Santa Fe SM airbag control unit repair
The most common error code encountered during Hyundai Santa Fe SM airbag control unit repairs is B1620, which indicates permanently stored crash data and prevents the error log from being erased. This specific code signals a failure of the control unit itself, not the sensors or actuators.
- B1620 → Crash data saved → Cause: Collision or accident after which the control unit has irretrievably saved the event data.
Other typical problems include internal errors that cannot be cleared using standard OBD-II devices. Professional diagnostics are essential to repair the control unit.
What part numbers are available for Hyundai Santa Fe SM airbag control unit repair?
For the Hyundai Santa Fe SM airbag control unit repair, there are several verified part numbers that ensure correct compatibility. These include both original Hyundai OEM numbers and equivalent supplier references, which are crucial for a precise replacement.
The exact, series-valid original OEM part numbers for the Hyundai Santa Fe SM airbag control unit have been carefully verified. They refer exclusively to the control unit, not to other airbag components.
- 95910-26600 (Hyundai OEM)
- 44S0023681D (supplier/OEM equivalent)
- 45020217 (supplier/OEM equivalent)
- 95910-2B970 (Hyundai OEM, further confirmed number)
To ensure a successful replacement or repair of the Hyundai Santa Fe SM airbag control unit, matching the part number is essential. An error or incompatible number will lead to further problems and safety system failures.