Hyundai H-1 TQ airbag control unit repair

What is a Hyundai H-1 TQ airbag control unit?

The Hyundai H-1 TQ airbag control unit is the central safety unit for your vehicle. It activates occupant restraint systems in the event of an accident by monitoring sensors and precisely deploying airbags and seatbelt pretensioners. Professional repair of the Hyundai H-1 TQ airbag control unit is essential for safety in the event of a defect.

This electronic module controls and monitors the entire Supplemental Restraint System (SRS). It ensures the proper functioning of all airbag modules and ensures that they deploy correctly in an emergency.

The control unit is typically installed in the footwell or center console of the Hyundai H-1 TQ. It is connected to the vehicle's network via a multi-plug connector and communicates with other control units via the CAN bus.

Why is the Hyundai H-1 TQ airbag control unit defective?

A Hyundai H-1 TQ airbag control unit often fails due to accidents, overvoltage, or internal component damage. Age-related wear and tear can also lead to failure. Such a defective module stores error codes that require a Hyundai H-1 TQ airbag control unit repair to ensure safety.

After a detected impact, the control unit stores so-called crash data, which can block the system. This is a common reason for a necessary reset or repair.

Electrical problems such as short circuits in the vehicle or power supply errors can also lead to failure. Internal electronic defects within the module are also a common cause.

Common error codes for Hyundai H-1 TQ airbag control unit repair

Typical error codes for Hyundai H-1 TQ airbag control unit repairs indicate communication problems, high resistance in airbag circuits, or seat occupancy sensor defects. Codes like "Crash Data Stored" require precise diagnostics to correct the errors and restore airbag system function.

These code-specific messages are stored in the control unit's internal memory. They signal a malfunction, which is indicated by the airbag warning light on the dashboard and requires immediate inspection by a workshop.

A professional diagnosis is crucial to identify the exact cause of the errors and to perform a successful Hyundai H-1 TQ airbag control unit repair.

• B1378 → Side airbag resistance too high → Too high resistance in the side airbag circuit of the airbag ECU
• B1382 → Side airbag resistance too high → Also too high resistance in the side airbag circuit of the airbag ECU
• B1447 → Occupant Classification System (OCS) Error → Problem with the seat occupancy sensor managed by the airbag ECU
• B1448 → Occupant Classification System (OCS) Error → Additional error in the seat occupancy sensor system, diagnosed by the airbag ECU
• Crash Data Stored → Crash data stored in the control unit → After an accident, the airbag ECU blocks due to stored collision data

What part numbers are available for the Hyundai H-1 TQ airbag control unit repair?

There are various verified OEM part numbers available for Hyundai H-1 TQ airbag control unit repairs. These include genuine Hyundai parts such as 95910-4H500 and 959104H600, as well as supplier numbers from Bosch or Siemens. The correct part number is absolutely crucial for compatibility and a successful repair.

These part numbers are specifically designed for the Hyundai H-1 TQ model (model year approximately 2008–2018) and ensure full functionality. Compatibility is closely tied to the exact model and year of manufacture.

When purchasing or repairing your Hyundai H-1 TQ airbag control unit, rely only on verified OEM part numbers. This ensures that the replacement part or repaired unit meets the manufacturer's specifications.

• 95910-4H500 (Hyundai Original OEM)
• 0285001924 (Bosch OEM supplier for 95910-4H500)
• 959104H600 (Hyundai Original OEM)
• 0285001925 (Bosch OEM supplier for 959104H600)
• SA310720000 (Siemens (?) OEM supplier)
• 95910-4A300 (Hyundai Genuine OEM, for older H-1/Starex)
• 95910-4A301 (Hyundai Genuine OEM, for H-1 Starex, compatible)
• 95900-4A301 (Hyundai Genuine OEM, for H-1 Platform/Chassis)