Airbag control unit with part number P04896129AF

What does the airbag control unit P04896129AF do?

The airbag control unit P04896129AF controls the SRS restraint system in Dodge. It reads the signals from the crash sensors, decides in an emergency on the airbags and seatbelt pretensioners, and monitors the entire system.

The decision falls within fractions of a second. The control unit compares the measured values with stored thresholds and then activates the appropriate firing circuits.

It stores faults in the fault memory and displays them via the airbag warning light. After an accident it records crash data and locks itself. Only the repair lifts this lock.

Why does the control unit P04896129AF fail?

Crash data that remain stored after an accident are the most frequent cause, even when no airbag has fired. A usual diagnostic tool does not erase them. In addition, ageing components, moisture and voltage spikes come into question as causes.

The crash data arise regardless of whether an airbag has fired. They cannot be removed with an ordinary diagnostic tool, and Airbag24 erases them only during the repair.

In addition, ageing electronics, cold solder joints, moisture at plug connections and voltage spikes, for example with a weak battery or jump-starting, affect the unit.

How can you tell that the P04896129AF is defective?

A defect shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition a fault message appears in the instrument cluster, and the diagnostic tool gets no connection to the control unit.

A fault memory that cannot be cleared is a further sign. Look out for these signs:

• Airbag warning light permanently or intermittently on
• Fault message in the instrument cluster
• No connection to the diagnostic tool
• Fault memory cannot be cleared

In an emergency airbags and seatbelt pretensioners may then possibly not fire. Therefore have the system checked promptly.

Which vehicles is the P04896129AF fitted in?

The control unit P04896129AF is found in these vehicles: Dodge Nitro KA (2006-2011).

These models are recorded:

• Dodge Nitro KA (2006-2011)

For one, compare the part number on the label of the removed unit with this page. That only ensures it is the right unit. For another, have the fault memory read out beforehand, because only the result shows whether the control unit or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 56054175AA, 56054501AA, 56054601AB, 56054601AC, 68072101AA, P04896129AG.

How does the repair of the P04896129AF work?

First read out the fault memory and enclose the log. Then disconnect the battery and only then remove the unit. Create the repair order online and send the well-packed unit.

Airbag24 checks the unit on the test bench, repairs defective components, erases the crash data and carries out a function test. The own unit then goes back to you.

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

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 P04896129AF get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. Airbag24 sends the repaired unit back to you by UPS.

The printed repair order goes into the parcel; pack the control unit shock-proof.