B2615 - Passenger airbag circuit fault airbag control unit fault

What does error code B2615 mean in the airbag control unit?

On Genesis vehicles, error code B2615 indicates that the circuit of the passenger airbag is faulty, meaning the electrical connection to this airbag. Part of the restraint system (SRS) is therefore affected, and the airbag control unit stores the fault in the fault memory and switches on the airbag warning light.

The restraint system is designed to protect the occupants in an accident, and the passenger airbag is part of it. If its circuit is faulty, the control unit detects the fault and keeps it in the fault memory until the fault has been read out and rectified.

How do you recognise error code B2615?

You recognise error code B2615 by the airbag warning light staying permanently lit and by the code appearing in the fault memory. While the circuit remains faulty, the entry cannot be permanently erased. It is read out with a diagnostic tool, which retrieves the fault memory of the airbag control unit.

As long as the fault is stored, the airbag warning light remains switched on. When read out, the diagnostic tool displays the entry, so that the workshop identifies the code unambiguously.

What causes error code B2615?

Error code B2615 concerns a circuit, so connectors, lines, the passenger airbag itself and the control unit are possible causes. Which of these applies is only shown by checking the individual components at a specialist workshop, as a circuit consists of several parts.

• A loose, corroded or damaged connector on the passenger airbag
• Broken or damaged lines in the circuit of the passenger airbag
• A faulty airbag module of the passenger airbag
• A faulty airbag control unit that evaluates the circuit

The meaning relates to the circuit and not to an individual sensor.

In which vehicles does error code B2615 occur?

Error code B2615 is known on the Genesis GV60 JW and Genesis GV70 JK1 models, that is, on the Genesis brand. For other brands the meaning of this code has not yet been recorded, and the information is limited to the Genesis brand.

The meaning may differ on other vehicles, and the list is not complete. Whether a particular vehicle is affected is shown only by reading out with a diagnostic tool.

How is error code B2615 resolved?

First have the fault memory read out with a diagnostic tool. Have the connector, line or passenger airbag checked at a specialist workshop, as these parts can be the cause. If the cause lies in the control unit, create a repair order online and send the unit in.

Before the control unit is removed, disconnect the battery. Only then is the control unit removed and sent in for repair.

Checking, repairing and testing usually take 3–4 working days. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required. Work on the airbag system should be left to qualified professionals.