Airbag control unit with part number PC3T-14B321-YC

What does the airbag control unit PC3T-14B321-YC do?

The airbag control unit PC3T-14B321-YC forms the control unit of the restraint system (SRS) of Ford. In an accident, it decides within milliseconds which airbags and seatbelt pretensioners are triggered.

Outside an accident it monitors the airbag circuit and the connected sensors. Faults it detects are shown via the airbag warning light in the instrument cluster.

An accident also means that the unit records crash data and locks itself.

Why does the control unit PC3T-14B321-YC fail?

Most often with the PC3T-14B321-YC, the cause is crash data stored after an accident without any airbag having fired. Ageing components, cold solder joints, corrosion and voltage spikes also play a role.

A normal diagnostic tool cannot remove crash data. Airbag24 removes it during the repair.

How strongly the other causes are involved in an individual case remains open without examination.

How can you tell that the PC3T-14B321-YC is defective?

A defect in the PC3T-14B321-YC becomes apparent when the airbag warning light stays on permanently or intermittently and an error message appears in the instrument cluster. Connection problems with the diagnostic tool and a fault memory that cannot be cleared are further signs.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

A prompt check is therefore the right step.

Which vehicles is the PC3T-14B321-YC fitted in?

The following vehicles are equipped with the PC3T-14B321-YC: Ford F-Series Super Duty 4 P558 (2017-2022).

Here is the vehicle list in detail:

• Ford F-Series Super Duty 4 P558 (2017-2022)

Comparing the number on the label of the removed unit with this page only confirms the identity of the unit. Reading out the fault memory, on the other hand, shows whether the control unit itself is affected or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers HC3T-14B321-BE, HC3Z-14B321-B, LC3Z-14B321-B.

How does the repair of the PC3T-14B321-YC work?

Reading out the fault memory of the PC3T-14B321-YC comes first; the log goes into the parcel. Then disconnect the battery and only then remove the control unit. Create the repair order online and send the well-packed unit in. Airbag24 needs 3–4 working days for checking, repairing and testing as a rule.

At Airbag24 the unit is first checked on the test bench. The team replaces defective components, then the crash data is deleted and a functional test is carried out. Your own unit is then sent back.

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 PC3T-14B321-YC get to Airbag24?

You arrange the shipment of the PC3T-14B321-YC yourself as a parcel, or alternatively you book a UPS collection for an extra charge. Returns are made by UPS.

The printed repair order goes into the parcel. Pack the control unit so that bumps cannot damage it.