Airbag control unit with part number HY53-14C246-AE

What does the airbag control unit HY53-14C246-AE do?

The airbag control unit HY53-14C246-AE controls the restraint system (SRS) of Aston Martin. It evaluates the crash sensors, decides in a collision on airbags and seatbelt pretensioners and monitors the entire system continuously.

It indicates faults via the airbag warning light. After an accident it stores crash data and locks itself.

The sensors supply measurements for this, which the unit evaluates constantly so that the decision is made in time in an emergency.

Why does the control unit HY53-14C246-AE fail?

The most common cause on the HY53-14C246-AE is stored crash data after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other causes are aged components, cold solder joints, moisture and voltage spikes.

Further causes in brief:

• electronic components that weaken over the years
• cold solder joints
• moisture and corrosion at the plug connections
• voltage spikes, for example with a weak battery or after jump-starting

How can you tell that the HY53-14C246-AE is defective?

A defect in the HY53-14C246-AE shows up as the airbag warning light, as error messages in the instrument cluster, as a missing connection to the diagnostic tool or as a fault memory that cannot be cleared. The airbags and seatbelt pretensioners may then not deploy in an emergency.

The warning light is the clearest sign, because it comes from the control unit itself. It can stay on permanently or appear only intermittently, and both call for a check. An error message in the instrument cluster or a diagnostic tool without connection to the control unit also points to a fault.

Which vehicles is the HY53-14C246-AE fitted in?

The control unit HY53-14C246-AE is fitted in these vehicles: Aston Martin Vantage 2nd generation (from 2018); Aston Martin DBS 2nd generation (2018-2023). The information comes from the assignments stored for this unit.

The following overview names the vehicles:

• Aston Martin Vantage 2nd generation (from 2018)
• Aston Martin DBS 2nd generation (2018-2023)

First compare the part number on the label of the removed unit with this page, which only ensures that it is the correct unit. Then have the fault memory read out, because only then does it become clear whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers HY53-14C246-AD.

How does the repair of the HY53-14C246-AE work?

First read out the fault memory and enclose the log, then disconnect the battery and only then remove the control unit HY53-14C246-AE. Then create the repair order online and send in the unit; at Airbag24 processing usually takes 3–4 working days.

The sequence protects you with every step on the airbag system and is therefore binding.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. The 3–4 working days relate only to this work, not to the route to Airbag24. Afterwards your own unit goes back to the sender.

Our repairs come with 2 years' statutory liability for defects. 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.

How does the control unit HY53-14C246-AE get to Airbag24?

The control unit HY53-14C246-AE comes to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair the unit comes back by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-proof.