Airbag control unit with part number 38910-66D10

What does the airbag control unit 38910-66D10 do?

The airbag control unit 38910-66D10 is the central control unit of the restraint system (SRS) in vehicles from Chevrolet. It evaluates the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered.

The unit makes this decision within milliseconds. It also monitors the system without interruption and indicates detected faults via the airbag warning light.

After an accident, the control unit stores crash data and locks itself.

Why does the control unit 38910-66D10 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. A normal diagnostic tool cannot erase it. Airbag24 erases it during the repair.

Other causes are aged electronic components, cold solder joints, and moisture and corrosion on plug connections. These influences develop gradually and have nothing to do with an accident.

Voltage spikes, for example from a weak battery or from connecting jump-start cables, can also affect the control unit.

How can you tell that the 38910-66D10 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. A fault message also appears in the instrument cluster, and the diagnostic tool cannot find the control unit.

A fault memory that cannot be cleared is a further sign. In this case, airbags and seatbelt pretensioners may not be able to trigger in an emergency. The warning light shows the condition, so you should have the cause clarified.

Which vehicles is the 38910-66D10 fitted in?

The control unit 38910-66D10 is fitted in these vehicles: Chevrolet Tracker 2nd generation (1999-2004). You can clarify whether your car is among them by comparing the details on the unit.

The vehicles at a glance:

• Chevrolet Tracker 2nd generation (1999-2004)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the correct unit. Please also have the fault memory read out, because only this log 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 38910-66D20.

How does the repair of the 38910-66D10 work?

For the repair of the 38910-66D10, first have the fault memory read out and attach the log. Then disconnect the battery and only then remove the control unit. Online, create the repair order and send in the well-packed unit.

Airbag24 checks the unit on the test bench, repairs or replaces defective components and erases the stored crash data. A function test follows, and your own unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days. This time applies only to 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 38910-66D10 get to Airbag24?

You send the control unit 38910-66D10 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

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