BYD Dolphin airbag control unit repair⁽¹⁾

What should I pay attention to with BYD Dolphin airbag control units?

The airbag control unit in the BYD Dolphin evaluates the crash sensors, triggers the airbags and belt pretensioners, and monitors the entire system. If it detects a fault, the airbag warning light on the dashboard comes on.

After an accident, the control unit stores crash data and locks itself. If the airbag warning light is on, the system should be checked by a specialist workshop without delay.

Airbag24 repairs the airbag control unit from your own vehicle that you send in. The repair covers deleting the crash data, checking for faults and repairing the defective control unit. The airbag system is safety-relevant, so any work on it belongs in the hands of a specialist company.

Which BYD Dolphin generations are there?

Our overview records one series for the BYD Dolphin: the 1. Generation, built since 2023. The production run is still ongoing.

• 1. Generation (since 2023) – first series of the BYD Dolphin, production still ongoing

Variants within the series differ by model year and equipment. The part number on the control unit shows which version is installed, not the model name alone.

How do I identify my BYD Dolphin airbag control unit?

The part number on the label of the control unit determines the exact version. Also note the model year and equipment of your vehicle before requesting a repair.

The following part number is recorded for the BYD Dolphin in our repair information, without any claim to completeness:

• EM2E-3658100

Fault codes give a first indication, for example B1600 (driver front airbag not connected), B17A800 (CAN bus interrupted) and B1694 (supply voltage too low). A single code does not prove a defect in the control unit, however. A specialist workshop determines the cause through testing.

What airbag equipment does the BYD Dolphin have?

The airbag equipment of the BYD Dolphin depends on the market and trim level. According to the available information, front, side and head airbags are standard equipment; the exact number for your vehicle is listed in its equipment details.

The information for the Australian version of the model also lists a centre airbag, which gives the front occupants extra protection in a side impact. Whether your vehicle has one can be checked in the equipment list.

If the airbag warning light is on or a fault is stored, have the fault memory read out by a specialist workshop. The workshop disconnects the battery properly and removes the control unit. Then create a repair order online and send the removed control unit, well packed, to Airbag24.

Processing usually takes 3-4 working days and covers checking, repairing and testing.

The repaired control unit comes back with all vehicle data and is ready for use immediately after refitting — no coding or programming is necessary.