Airbag control unit with part number G1ET-14B321-HB

What does the airbag control unit G1ET-14B321-HB do?

The airbag control unit G1ET-14B321-HB monitors the restraint system (SRS) in Ford. From the signals of the crash sensors, it determines within milliseconds which airbags and seatbelt pretensioners to trigger. It detects faults continuously and shows them via the airbag warning light.

While driving, the unit checks its components and connections continuously. It stores any irregularities in the fault memory.

After an accident, it stores crash data and locks itself.

Why does the control unit G1ET-14B321-HB fail?

Most often the cause is crash data stored in the unit after an accident, even if no airbag has deployed. A standard diagnostic tool cannot erase it. Other causes include ageing components, cold solder joints, moisture and corrosion, and voltage spikes.

The other causes in detail:

• Ageing electronic components that gradually lose reliability
• Cold solder joints that are hard to detect from outside
• Moisture and corrosion at plug connections
• Voltage spikes, for example with a weak battery or a jump start

Crash data remains stored even if the vehicle drives normally again after the accident. That is why the accident is one of the questions with which a fault search begins.

How can you tell that the G1ET-14B321-HB is defective?

A defect shows up as the airbag warning light in the instrument cluster and through other signs. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

• Airbag warning light in the instrument cluster lights up permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

The warning light affects the entire restraint system and therefore deserves prompt checking.

Which vehicles is the G1ET-14B321-HB fitted in?

The control unit G1ET-14B321-HB is fitted in these vehicles: Ford Focus 3 ’11 (2010-2014) and 3 ’11 Facelift (2014-2018).

This list shows the vehicles to which the number is assigned:

• Ford Focus 3 ’11 (2010-2014)
• Ford Focus 3 ’11 Facelift (2014-2018)

Compare the part number on the label of the removed unit with this page. That only clarifies whether it is the right unit. Also have the fault memory read out in advance, because only the result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285011993, BM5T-14B321-CE, CM5T-14B321-CA, DM5T 14B321 SA, F1ET-14B321-CB.

How does the repair of the G1ET-14B321-HB work?

First have the fault memory read out and enclose the log. Then disconnect the battery, and only then remove the control unit. Next, create a repair order online and send in the well-packed unit.

Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and runs a function test. Your own unit is then sent back to you.

The sequence serves safety during removal. Processing at Airbag24 usually takes 3–4 working days, and this time applies only to testing, repairing and checking. 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 G1ET-14B321-HB 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 to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-resistant.