Airbag control unit with part number 56043355

What does the airbag control unit 56043355 do?

The airbag control unit 56043355 coordinates the restraint system (SRS) in the Dodge. It reads the crash sensors, determines in an accident within milliseconds which airbags and seatbelt pretensioners fire, and monitors the entire system. It reports faults via the airbag warning light.

In the background the unit keeps working unobtrusively. Only a fault or an accident brings it to the fore. After an accident it stores crash data and locks itself.

Sensors, wiring and the unit form a coordinated whole.

Why does the control unit 56043355 fail?

Crash data that remains in memory after an accident counts among the most common causes, and this is the case even when no airbag has fired. The other causes are aged electronics, cold solder joints, moisture on plugs and corrosion, and voltage spikes.

Common diagnostic tools cannot change anything about this. Airbag24 carries out the erasure itself.

Voltage spikes that occur when the vehicle is pushed to start or when the battery is weak also stress the unit.

How can you tell that the 56043355 is defective?

In the instrument cluster, indications such as the airbag warning light that stays on permanently or intermittently, an error message, a missing connection to the diagnostic tool, or a fault memory that cannot be cleared appear. In an emergency the airbags and seatbelt pretensioners may then possibly not trigger.

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

Please do not ignore indications that appear. A check finds out whether the control unit or a connection is the cause.

Which vehicles is the 56043355 fitted in?

The models in which the unit 56043355 is fitted are: Dodge Ram Van B-Serie (1995-2003).

Here is also this list for comparison:

• Dodge Ram Van B-Serie (1995-2003)

Comparing the part number on the label of the removed unit with this page ensures that the correct unit is present. Read out the fault memory beforehand. This log shows whether the control unit itself is affected or a plug or a cable.

For the same vehicles, we also repair control units with the part numbers 56043221AG, 56043999AA, 56043999AB.

How does the repair of the 56043355 work?

First have the fault memory read out and attach the log. Then disconnect the battery, only then remove the control unit, create a repair order online and send it in well packed. Airbag24 first checks the unit on the test bench, replaces damaged components, erases the crash data and carries out a function test.

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

The sequence protects you during removal and is therefore binding. 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 56043355 get to Airbag24?

You can send the unit in a parcel, or have UPS collect it for an extra charge. The return to you also runs via UPS.

Do not forget to enclose the printed repair order. Pack the unit shock-proof.