Airbag control unit with part number 52154514

What does the airbag control unit 52154514 do?

The 52154514 is the airbag control unit of the restraint system (SRS) of Jeep. It reads the signals from the crash sensors, decides in a crash within a very short time on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. Faults are displayed via the airbag warning light.

If an accident occurs, the unit stores crash data and then locks itself. In everyday use the electronics run unnoticed in the background.

Why does the control unit 52154514 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. Ordinary diagnostic tools cannot erase this data, but Airbag24 erases it during repair. Other causes include aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Besides the crash data, several influences come into consideration:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump start

Which of these causes is actually present cannot be determined without testing the electronics.

How can you tell that the 52154514 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool does not establish a connection to the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may not deploy.

Such indications must be taken seriously, because in an emergency airbags and seatbelt pretensioners may possibly not deploy.

Therefore have the system checked promptly, even if the vehicle otherwise runs normally.

Which vehicles is the 52154514 fitted in?

The control unit 52154514 is fitted in these vehicles: Jeep Renegade BU Facelift (from 2018) and BU (2014-2018). The details come from our assignment to the part number and serve as a guide.

The assignment lists these models:

• Jeep Renegade BU Facelift (from 2018)
• Jeep Renegade BU (2014-2018)

Compare the part number on the label of the removed unit with this page, so you can be sure you have the right unit in front of you. Also have the fault memory read out beforehand; only this log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 52042475, 52061844, 68256081AA, 68256081AB.

How does the repair of the 52154514 work?

First have the fault memory read out and attach the log, then disconnect the battery before removing the control unit. Then create a repair order online and send the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Afterwards you receive your own unit back.

The time frame covers only the checking, repairing and testing.

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 52154514 get to Airbag24?

You either send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns the repaired unit by UPS.

The printed repair order goes into the parcel, and you pack the unit shock-resistantly.