What is a Hyundai Tucson LM airbag control unit?
The Hyundai Tucson LM 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 in the vehicle.
This module continuously evaluates data from various acceleration and pressure sensors. It decides which airbags and seatbelt pretensioners need to be deployed in the event of a collision.
After an accident, the control unit stores relevant crash data that can be used to diagnose the incident. This data must be professionally erased or reset before reuse.
Why is the Hyundai Tucson LM airbag control unit defective?
A Hyundai Tucson LM airbag control unit is often defective because crash data was stored after an accident, which blocks its functionality. Internal communication errors or electrical short circuits in the system can also be the cause, causing the airbag warning light to stay illuminated and necessitating a Hyundai Tucson LM airbag control unit repair.
After an impact, so-called crash data is stored in the module to prevent re-deployment. This is a common reason for the need for a Hyundai Tucson LM airbag control unit repair.
Electrical problems such as short circuits in the driver airbag circuit or faults in the passenger airbag switch can also cause defects. The control unit detects such anomalies and signals them via the airbag warning light.
Common error codes for Hyundai Tucson LM airbag control unit repair
When repairing the Hyundai Tucson LM airbag control unit, codes B1620 and B1650 often indicate stored crash data. Codes B1000 signal communication problems with the control unit. Other critical codes include B1348 for a short in the driver airbag circuit and B1527, which concerns problems with the passenger airbag switch and requires a specific module repair.
- B1000 → Control unit communication error → Interruption of the data connection to the airbag control unit
- B1348 → Driver airbag level 1 short circuit to ground → Electrical fault in the driver airbag circuit
- B1527 → Passenger Airbag On/Off Switch open or short to battery → Problem with the passenger airbag deactivation switch
- B1620 → Crash data stored (crash data in the control unit) → Accident event was logged in the airbag module
- B1650 → Crash data for frontal impact stored → Specific data of a frontal crash are stored in the control unit
What part numbers are available for the Hyundai Tucson LM airbag control unit repair?
For Hyundai Tucson LM airbag control unit repairs, OEM part numbers 95910-D7230, 95910-D7130, 95910-D3250, and 95910-D3200 are essential. These have been confirmed several times for older models. Newer modules such as 95910-CW100 and 95910-CW000 are relevant for later models to ensure proper airbag system function.
The main OEM part numbers for the Hyundai Tucson LM airbag control module include 95910-D7230 and 95910-D7130. These are directly linked to repair and testing services and are validated.
Other important numbers are 95910-D3250 and 95910-D3200, which have been confirmed by reset services and used part offers. These ensure high compatibility during repair.
For newer models of the Hyundai Tucson, the OEM part numbers 95910-CW100 and 95910-CW000 are relevant. Although primarily for newer models, these may also be suitable for certain LM models.