Airbag control unit with part number 52038941

What does the airbag control unit 52038941 do?

The airbag control unit 52038941 is the central control unit of the restraint system (SRS) for Jeep. It evaluates the signals from the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If the unit detects a fault, it shows it via the airbag warning light in the instrument cluster. After an accident it stores crash data and locks itself.

The housing additionally carries the manufacturer number Bosch 0285013337, which can be checked along with the label.

Why does the control unit 52038941 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Further causes are aged electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

Electronics age, and moisture gets in through connectors. Corrosion forms there, which disturbs the contact and is hard to pinpoint from outside.

Voltage spikes, for example from a weak battery or a jump start, put additional strain on the electronics. The deletion of crash data is part of the repair at Airbag24.

How can you tell that the 52038941 is defective?

A defect on the 52038941 shows as an airbag warning light in the instrument cluster that lights up permanently or intermittently, as error messages in the instrument cluster, as a missing connection between the diagnostic tool and the control unit, and as a fault memory that cannot be erased.

Such signs mean that airbags and seatbelt pretensioners may not trigger in an emergency. The warning light therefore deserves attention, even if it only lights up briefly.

Which component is affected only becomes apparent when the fault memory is read out.

Which vehicles is the 52038941 fitted in?

The 52038941 is installed in these vehicles: Jeep Renegade BU Facelift (from 2018) and BU (2014-2018).

The vehicles for which this number is on record are shown in the overview:

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

Two checks are worthwhile before removal. Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Having the fault memory read out beforehand, on the other hand, shows whether the control unit is defective or whether a plug or a 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 52038941 work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Next create a repair order online and send the unit off well packed.

At Airbag24 the unit is examined on the test bench, defective components are repaired, stored crash data is deleted and finally a function test is carried out. Your own unit then goes back to you.

Processing at Airbag24 usually takes 3–4 working days. This time applies only to testing, repairing and checking in-house.

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 52038941 get to Airbag24?

You send the control unit 52038941 as a package or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Put the printed repair order into the package and pack the unit shock-resistant.