Airbag control unit with part number 89170-02051

What does the airbag control unit 89170-02051 do?

The SRS control unit 89170-02051 runs the entire restraint system in Chevrolet. Using the crash sensors, it measures the deceleration and decides in an accident which airbags and seatbelt pretensioners are triggered.

The calculation takes place within milliseconds. The unit also checks the system continuously during operation and shows faults via the airbag warning light.

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

Why does the control unit 89170-02051 fail?

The most common cause for the 89170-02051 is the crash data stored after an accident, even if no airbag has deployed; an ordinary diagnostic tool cannot erase it. Other causes include ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example with a weak battery or jump-starting.

Crash data records an event, but it does not tell you whether the control unit itself is damaged. The inspection has to clarify that.

Plug connections with moisture and corrosion can gradually weaken the contacts, while cold solder joints can interrupt connections.

How can you tell that the 89170-02051 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears alongside it. The diagnostic tool also finds no connection to the 89170-02051, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may not deploy in the event of such a fault. An early inspection is therefore advisable.

Which vehicles is the 89170-02051 fitted in?

The control unit 89170-02051 is fitted in these vehicles: Chevrolet Prizm E110 (1998-2002). The details come from our assignment of this part number.

Here is the assignment line by line:

• Chevrolet Prizm E110 (1998-2002)

Comparing the part number on the label of the removed unit with this page only confirms that you have the right unit. Have the fault memory read out beforehand, because only that result shows whether the 89170-02051 is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 89170-02050.

How does the repair of the 89170-02051 work?

First have the fault memory of the 89170-02051 read out and enclose the log, then disconnect the battery and only then remove the control unit. Next, create a repair order online and pack the unit well before you send it in. Airbag24 checks it, replaces defective components, erases the crash data and carries out a function test; this usually takes 3–4 working days.

Your own unit is returned to you afterwards. Airbag24's work covers only inspection, repair 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 89170-02051 get to Airbag24?

You send the control unit 89170-02051 as a parcel, or you have it collected by UPS, with the UPS collection booked separately for an extra charge. After the repair, Airbag24 returns the unit by UPS.

Put the printed repair order into the parcel, and pack the control unit shockproof.