Airbag control unit with part number P56043703AB

What does the airbag control unit P56043703AB do?

The airbag control unit P56043703AB coordinates the restraint system in Dodge. It analyses the signals from the crash sensors, determines in the event of a crash which airbags and seatbelt pretensioners are triggered, and checks the system continuously.

If it detects a fault, it indicates this via the airbag warning light. In addition, it stores crash data and locks itself after an accident.

Why does the control unit P56043703AB fail?

Stored crash data from an accident is the most common cause, even if no airbag has triggered, and a standard diagnostic tool cannot delete it. Aged electronics, cold solder joints, moisture on plug connections and voltage spikes are also possible causes.

Whether an airbag fired in the accident makes no difference to the storage.

Electronics age, and solder joints can go cold over time. Moisture is added, which causes plug connections to corrode. Voltage spikes also belong here, for example when the battery is weak or a jump start is given.

How can you tell that the P56043703AB is defective?

A defect is indicated by the airbag warning light in the instrument cluster, an error message and a lack of contact between the diagnostic tool and the control unit. If the fault memory also cannot be cleared, that is a further sign. Then airbags and seatbelt pretensioners may not trigger in an emergency.

The typical signs at a glance:

• Airbag warning light that stays on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool cannot find the control unit
• Fault memory cannot be cleared

The light is a warning signal from the control unit itself and must be taken seriously.

Which vehicles is the P56043703AB fitted in?

The unit P56043703AB is used in these vehicles: Dodge Ram DR/DH/D1/DC/DM Facelift (2006-2009) and DR/DH/D1/DC/DM (2002-2006). Only the part number on the unit itself shows which unit is fitted in your car.

The list includes the vehicles to which this part number is assigned:

• Dodge Ram DR/DH/D1/DC/DM Facelift (2006-2009)
• Dodge Ram DR/DH/D1/DC/DM (2002-2006)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the right unit in front of you. Also have the fault memory read out before removing anything, because only this result shows whether the control unit is defective or a plug or cable is the cause.

How does the repair of the P56043703AB work?

First have the fault memory read out and enclose the log with the unit. Then disconnect the battery and remove the control unit; afterwards create a repair order online and send in the well-packed unit. Airbag24 checks it on the test bench, repairs defective components, deletes the crash data and carries out a function test.

The sequence protects you: the control unit is only removed after the battery has been disconnected. Processing at Airbag24 usually takes 3–4 working days, and this time covers only 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 P56043703AB get to Airbag24?

The control unit goes to Airbag24 as a parcel, or alternatively UPS collects it for an extra charge. The return after the repair is likewise made by UPS.

Do not forget to enclose the printed repair order, and pad the unit shockproof.