Airbag control unit with part number 619771500

What does the airbag control unit 619771500 do?

As the SRS control unit, the airbag control unit 619771500 controls the airbags and seatbelt pretensioners of Citroën and Peugeot. In an impact it determines from the sensor signals which restraint devices must fire. After an accident it stores crash data and locks itself.

The evaluation takes place in a fraction of a second. At the same time the unit monitors wiring, firing circuits and sensors; if it finds a fault, it reports it via the airbag warning light.

This monitoring function runs permanently, even though you may not notice anything of it in everyday use.

Why does the control unit 619771500 fail?

Stored crash data after an accident are the most common cause of failures, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start.

The records remain in memory, and a normal diagnostic tool cannot erase them.

The remaining causes mainly concern wear and environmental influences. Electronic components age, solder joints can be cold or give way over time, and moisture promotes corrosion at plug connectors.

Voltage spikes, for example when starting with a jump start or with a weak battery, can also harm the electronics.

How can you tell that the 619771500 is defective?

A defect in the 619771500 shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition there may be a fault message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared. In this state, airbags and seatbelt pretensioners may not deploy in an emergency.

The light is not a minor matter but the system's direct message. Anyone who ignores it is driving with a restraint system that may not work fully.

A specialist check will establish whether the control unit itself or a connection is affected.

Which vehicles is the 619771500 fitted in?

The 619771500 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 models for which this number is on record are listed here:

• 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)

Compare the part number on the label of the removed unit with this page; that only confirms whether the unit fits. Also have the fault memory read out, because this log shows whether the control unit or a plug or cable is the cause.

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 619771500 work?

First have the fault memory read out and attach the log, then disconnect the battery. Then remove the 619771500, create a repair order online and send the unit in, well packed.

The sequence is important, so do not swap the steps. Only after reading out is the battery disconnected, and only then comes removal.

Airbag24 checks the unit on the test bench and repairs defective components. Stored crash data are erased, followed by a function test. Processing at Airbag24 itself usually takes 3–4 working days, after which your own unit goes back to you.

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 619771500 get to Airbag24?

You send the control unit 619771500 as a parcel or have it collected by UPS for an extra charge. After the repair, UPS brings the unit back to you.

Put the printed repair order into the parcel and pack the unit shockproof.