Airbag control unit with part number P56054200AF

What does the airbag control unit P56054200AF do?

The P56054200AF controls the restraint system (SRS) of Dodge. It evaluates the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If the unit detects a fault in the system, it reports it via the airbag warning light in the instrument cluster. For drivers, this light is the most important indication of faults in the restraint system.

After an accident, the control unit stores crash data and locks itself. Storing this data is a function of the unit, regardless of whether an airbag has deployed.

Why does the control unit P56054200AF fail?

The P56054200AF most often fails because crash data was stored after an accident, even when no airbag was deployed. A normal diagnostic tool cannot remove this data. Other causes are of a general nature.

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

Which cause applies to a specific unit only becomes clear on examination. Airbag24 deletes the stored crash data during the repair.

How can you tell that the P56054200AF is defective?

Typical signs of a defect in the P56054200AF are an airbag warning light that stays on permanently or intermittently, and a fault message in the instrument cluster. In addition, there are problems with the diagnostic tool and a fault memory that cannot be cleared.

• The airbag warning light in the instrument cluster stays on permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool cannot connect to the control unit.
• The fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy. Please have the system checked promptly rather than ignoring the warning.

Which vehicles is the P56054200AF fitted in?

The P56054200AF is fitted in these vehicles: Dodge Caliber PM (2006-2009) and PM Facelift (2009-2011).

The following models are recorded for this part number:

• Dodge Caliber PM (2006-2009)
• Dodge Caliber PM Facelift (2009-2011)

Before removal, you should read out the fault memory. This establishes whether the control unit itself is defective or whether a plug or cable is triggering the message. You can then compare the part number on the label of the removed unit with this page.

For the same vehicles, we also repair control units with the part numbers 4672602AB, 4896616AA, 4896616AB, 68148034AA, P04672603AE, P04896621AE.

How does the repair of the P56054200AF work?

Processing at Airbag24 usually takes 3–4 working days. It covers checking, repairing and testing the unit in our workshop.

Before removal, read out the fault memory and enclose the log with the unit. Then disconnect the battery, remove the control unit, create a repair order online and pack the unit securely for dispatch.

At Airbag24, the unit first goes onto the test bench. The workshop replaces defective components, the crash data is deleted, and a function test completes the work. The unit then 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 P56054200AF get to Airbag24?

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

Place the printed repair order in the parcel and pack the control unit so that it is shock-resistant.