Kia Sorento XM airbag control unit repair

What is a Kia Sorento XM airbag control unit?

The Kia Sorento XM airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors vehicle sensors, stores important crash data, and ensures the proper functioning of the entire airbag system for maximum safety.

This SRS (Supplemental Restraint System) module is essential for protecting vehicle occupants. It processes signals from impact sensors and triggers the passive safety systems in milliseconds.

A correctly functioning airbag control unit is therefore essential for the road safety of your Kia Sorento XM.

Why is the Kia Sorento XM airbag control unit defective?

A Kia Sorento XM airbag control unit may be defective because crash data was stored after an accident, preventing the system from being reset. Internal hardware or software errors, as well as power supply issues, can also cause a failure, preventing the airbag system from functioning properly.

After an impact, so-called crash data is irretrievably stored in the control unit, resulting in the system's functional immobilization. A professional Kia Sorento XM airbag control unit repair is often the only solution in such cases.

Common causes include internal memory errors (e.g., B1405), which damage the airbag control unit. Furthermore, undervoltage or overvoltage (B1102, B1103) can damage the module and cause it to fail.

Without correcting these errors, the airbag warning light will remain permanently illuminated, indicating a system defect and compromising safety.

Common error codes for Kia Sorento XM airbag control unit repair

When repairing the Kia Sorento XM airbag control unit, certain error codes are crucial for identifying the exact cause of a defect. These OBD-II B codes indicate specific problems with the airbag control unit and are essential for a targeted diagnosis.

• B1620 → Control unit defective / memory error → This indicates internal damage or triggered crash data that prevents the system from functioning.
• B1102 → Supply voltage too low → An undervoltage of the airbag ECU can be caused by battery problems, loose connections or broken wires.
• B1103 → Supply voltage too high → An overvoltage on the control unit indicates problems with the vehicle charging electronics or faulty voltage regulators.
• B1402 → Internal control unit error → This code indicates a serious hardware or software defect within the airbag control unit.
• B1405 → Memory error / non-resettable errors → This code signals a permanent memory error or unresettable crash data that is blocking the system.

What part numbers are available for Kia Sorento XM airbag control unit repair?

For a successful Kia Sorento XM airbag control unit repair, an exact part number match is crucial to ensure compatibility and safety. An incorrect part number may result in malfunctions or the airbag warning light illuminating.

The main recommended original OEM part numbers for the Kia Sorento II (XM) airbag control unit are:

• 95910-2P580 (Kia / Autoliv OEM)
• 959101U150 (Kia OEM)
• 959101U000 (Kia OEM)
• 959101U100 (Kia OEM)

These part numbers have been specifically tested for the Sorento XM generation and are classified as airbag control units. When replacing, always check the existing part number to ensure a smooth installation.

For final confirmation of the correct part number of your Kia Sorento XM airbag control unit, we strongly recommend consulting a professional workshop or authorized Kia dealer, providing the vehicle identification number (VIN).