Airbag control unit with part number 9839618480

What does the airbag control unit 9839618480 do?

The airbag control unit 9839618480 is the central electronics of the restraint system (SRS) of DS Automobiles. It receives the messages from the crash sensors, calculates from them the moment of triggering in an impact, and monitors the entire system. After an accident, it stores crash data and locks itself.

The unit logs faults in the fault memory. In addition, the airbag warning light informs the occupants.

Why does the control unit 9839618480 fail?

Crash data from an accident that remains in the memory is the most common cause, even if no airbag was triggered. A normal diagnostic tool cannot remove it. Further possible causes for 9839618480 are aged components, solder joints, moisture and voltage spikes.

• Ageing electronic components
• Cold solder joints on the circuit board
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or a jump start

Which of these causes is actually present must be shown by the examination. Crash data alone is no proof of that.

How can you tell that the 9839618480 is defective?

A defect shows up as the airbag warning light in the instrument cluster, an error message, a missing connection to the diagnostic tool, or a fault memory that cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then not trigger.

• Airbag warning light that stays on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool does not find the control unit
• Fault memory cannot be cleared

The light reports a fault directly, so it must be taken seriously. Restarting the vehicle does not make the check unnecessary.

Which vehicles is the 9839618480 fitted in?

The control unit 9839618480 is fitted in these vehicles: DS Automobiles DS 9 I (2020-2024).

The assignment is shown below as a list.

• DS Automobiles DS 9 I (2020-2024)

Compare the part number on the unit with this page. This shows you whether you have the matching unit. It does not show whether the control unit itself is defective. Having the fault memory read out is therefore the next step, because it reveals whether the control unit or a plug or cable is causing the fault.

How does the repair of the 9839618480 work?

You have the fault memory read out and attach the log, then disconnect the battery and remove the control unit 9839618480. Online, you then create a repair order and send the unit in well packed. For testing, repairing and checking at Airbag24, allow 3–4 working days as a rule.

At Airbag24, the unit is checked, defective components are repaired where necessary, the crash data is erased and a function test is carried out. Afterwards, you receive your unit back.

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 9839618480 get to Airbag24?

You send the unit 9839618480 in a parcel, or you book a UPS collection for an extra charge. The return after the repair is also made by UPS.

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