Airbag control unit with part number 52027192

What does the airbag control unit 52027192 do?

The airbag control unit 52027192 controls the restraint system (SRS) of Ford. It evaluates the crash sensors, decides in an accident on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

It detects faults itself and shows them via the airbag warning light in the instrument cluster.

It connects the sensors with the triggering of the airbags and seatbelt pretensioners, which is why it is central to the entire system.

Why does the control unit 52027192 fail?

The most frequent cause on the 52027192 is crash data stored after an accident, even if no airbag has deployed. Erasing this data is often not possible with this control unit; anyone who wants it erased should contact Airbag24 briefly before sending it in. Aged components, cold solder joints, moisture at plug connections and voltage spikes are also possible.

The crash data are held in the control unit itself. An accident therefore does not have to have led to an airbag deployment for the data to be there.

The other causes concern electronics and connections: components age, solder joints can be cold, moisture and corrosion attack plug connections, and voltage spikes, for example from a weak battery or a jump start, stress the electronics.

How can you tell that the 52027192 is defective?

A defect on the 52027192 shows through warning signals in the instrument cluster. It can be recognised by the warning light; in an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The signs in detail:

• Airbag warning light in the instrument cluster, permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

These signs point to a fault in the system, not to a specific cause. Have the system checked promptly when they appear.

Which vehicles is the 52027192 fitted in?

The control unit 52027192 is fitted in these vehicles: Ford Ka 2 KA2 RU8 (2008-2016). The list shows the models to which this part number belongs.

The following vehicles are assigned to this part number:

• Ford Ka 2 KA2 RU8 (2008-2016)

Comparing the part number on the removed unit only tells you that it is the right unit. Whether the control unit is defective or a connector or cable is the cause is shown only by the fault memory, which you have read out beforehand.

For the same vehicles, we also repair control units with the part numbers 51805046, 51889815, 51925901, 51925902, A2C30469900, A2C30470000.

How does the repair of the 52027192 work?

First have the fault memory read out and enclose the log, then disconnect the battery and remove the 52027192. Pack the unit well and create a repair order online before you send it in. For checking and repair at Airbag24, expect 3–4 working days as a rule.

Airbag24 checks the unit on the test bench, replaces defective components and carries out a function test. Afterwards your own unit comes back to you.

If you want the crash data erased, contact Airbag24 briefly before sending the unit in.

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 52027192 get to Airbag24?

You send the control unit 52027192 as a parcel or have it collected by UPS for an extra charge. Airbag24 returns it by UPS after the repair.

Enclose the printed repair order and secure the unit shockproof in the box.