Airbag control unit with part number 51889814

What does the airbag control unit 51889814 do?

The airbag control unit 51889814 controls the restraint system (SRS) of Ford. In an accident it decides within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

The unit indicates faults via the airbag warning light. After an accident the device stores crash data and locks itself.

Why does the control unit 51889814 fail?

The most common cause is stored crash data after an accident, even if no airbag has deployed; other possible causes are aged components, cold solder joints, moisture and voltage spikes. With this control unit, deleting the crash data is often not possible. If you would like the crash data deleted, contact Airbag24 briefly before sending the unit in.

Stored crash data is created in the device after an accident, and a normal diagnostic tool cannot remove it.

Further causes are aged electronic components, cold solder joints, and moisture and corrosion at plug connectors. Voltage spikes, for example from a weak battery or a jump start, place additional strain on the electronics.

How can you tell that the 51889814 is defective?

A defect shows up as the airbag warning light in the instrument cluster staying on permanently or intermittently. A fault message, a lack of contact with the diagnostic tool or a fault memory that cannot be cleared also indicate a defect.

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

In an emergency, airbags and seatbelt pretensioners may therefore not trigger. If such a sign persists, have the fault checked.

Which vehicles is the 51889814 fitted in?

The assignment applies to exactly this part number. The control unit 51889814 is fitted in these vehicles: Ford Ka 2 KA2 RU8 (2008-2016).

The list contains the vehicles that are stored for this part number.

• Ford Ka 2 KA2 RU8 (2008-2016)

The label comparison only checks whether it is the correct device. Whether the control unit is defective or a plug or cable is behind the fault is clarified only by the fault memory that 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 51889814 work?

For safety reasons, read out the fault memory first and enclose the log. Then disconnect the battery, remove the control unit, create a repair order online and send the unit in well packed. Airbag24 generally needs 3–4 working days for the check, the repair and the function test.

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

If you would like the crash data deleted, 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 51889814 get to Airbag24?

Shipping is by parcel or by a UPS collection that you book for an extra charge. After the repair Airbag24 sends the unit back by UPS.

Include the printed repair order with the parcel, and pack the control unit shockproof.