Airbag control unit with part number 89170-02050

What does the airbag control unit 89170-02050 do?

The airbag control unit 89170-02050 coordinates the restraint system (SRS) in vehicles from Chevrolet. It receives the signals from the crash sensors and determines in an accident which airbags and seatbelt pretensioners fire.

The window for this is extremely short, because the decision must be made within milliseconds. In addition, the unit continuously checks the function of the components during operation and indicates detected faults via the airbag warning light.

If an accident has occurred, the control unit stores crash data and then locks itself.

Why does the control unit 89170-02050 fail?

The most common reason for a failure is crash data stored after an accident, even if no airbag was triggered. A normal diagnostic tool cannot erase it. Airbag24 deletes this crash data during the repair.

Faults that develop gradually can also occur without an accident. Aged electronic components are one example, as are cold solder joints. Moisture and corrosion on plug connections can cause intermittent faults, and voltage spikes from a weak battery or jump-starting place additional strain on the electronics.

How can you tell that the 89170-02050 is defective?

A defect shows itself through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. A fault message also appears in the instrument cluster, and a diagnostic tool finds no connection to the control unit.

Also conspicuous is a fault memory that cannot be cleared. In this case, airbags and seatbelt pretensioners may not be able to trigger in an emergency. The warning light reliably reports the condition, and its warning should not be ignored but should lead to an inspection.

Which vehicles is the 89170-02050 fitted in?

The 89170-02050 is fitted in these vehicles: Chevrolet Prizm E110 (1998-2002). Whether your vehicle is among them is shown by comparing the details.

You will find the matching vehicles in this overview:

• Chevrolet Prizm E110 (1998-2002)

Before you remove the unit, compare the part number on the label with this page. This only ensures that you have the correct unit. The fault memory should also be 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 89170-02051.

How does the repair of the 89170-02050 work?

First read out the fault memory and attach 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.

At Airbag24, a test bench examines the unit. If components are defective, they are repaired or replaced. Airbag24 then erases the crash data and carries out a function test, after which your own unit is sent back.

Processing at Airbag24 usually takes 3–4 working days. This period covers only the inspection, the repair and the test.

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 89170-02050 get to Airbag24?

You send the unit to us 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. Pack the unit shock-proof.