Airbag control unit with part number 9803916680

What does the airbag control unit 9803916680 do?

The airbag control unit 9803916680 is the central control unit of the restraint system (SRS) for Citroën and Peugeot. It evaluates the signals from the crash sensors, decides in an accident within a few milliseconds on triggering, and monitors the system continuously. It reports faults via the airbag warning light.

The components controlled include airbags and seatbelt pretensioners, which unfold their effect in an emergency.

After an accident the unit stores crash data and locks itself. The control unit is at the centre of the safety technology.

Why does the control unit 9803916680 fail?

The most common cause with the 9803916680 is crash data stored after an accident; in addition there are aged components, cold solder joints, moisture and corrosion, and voltage spikes.

A normal diagnostic tool cannot erase crash data, so the fault may remain in the unit.

The other causes concern the electronics themselves. Components age, solder joints can go cold, moisture and corrosion attack plug connectors, and voltage spikes strain the circuit.

How can you tell that the 9803916680 is defective?

A defect on the 9803916680 shows itself through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition there are error messages in the instrument cluster, a diagnostic tool without connection to the control unit, and a fault memory that cannot be cleared.

Such signs directly affect the protective function. In an emergency, airbags and seatbelt pretensioners may possibly not trigger, which is why the warning light must be taken seriously.

A check quickly brings clarity here.

Which vehicles is the 9803916680 fitted in?

The airbag control unit 9803916680 is fitted in these vehicles: Citroën Berlingo II B9 (2008-2012), II 2nd Facelift (2015-2018) and II 1st Facelift (2012-2015); Peugeot Partner II 1st Facelift (2012-2015), II (2008-2012) and II 2nd Facelift (2015-2019); Citroën Berlingo Multispace II 1st Facelift (2012-2015), II 2nd Facelift (2015-2018) and II B9 (2008-2012).

The list below shows the vehicles individually.

• Citroën Berlingo II B9 (2008-2012)
• Citroën Berlingo II 2nd Facelift (2015-2018)
• Citroën Berlingo II 1st Facelift (2012-2015)
• Peugeot Partner II 1st Facelift (2012-2015)
• Peugeot Partner II (2008-2012)
• Peugeot Partner II 2nd Facelift (2015-2019)
• Citroën Berlingo Multispace II 1st Facelift (2012-2015)
• Citroën Berlingo Multispace II 2nd Facelift (2015-2018)
• Citroën Berlingo Multispace II B9 (2008-2012)

Matching the part number with the label of the removed unit only confirms that it is the right unit. Which cause applies is shown only by a fault memory read-out, which you should arrange before removal.

For the same vehicles, we also repair control units with the part numbers 6590PK, 9665250280, 9665558380, 9665558480, 9665944180, 9673393980.

How does the repair of the 9803916680 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the control unit 9803916680. Finally create a repair order online and send the unit in well packed.

This sequence is fixed for safety reasons.

At Airbag24 the unit is checked on the test bench, defective components are replaced and a function test is carried out. Your unit is returned afterwards. The repair of a defect remains possible as normal. Testing, repairing and checking at Airbag24 usually take 3–4 working days. 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 9803916680 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns the control unit 9803916680 by UPS.

The printed repair order goes into the parcel, and the packaging must be shock-proof.