Airbag control unit with part number 89170-04130

What does the airbag control unit 89170-04130 do?

The airbag control unit 89170-04130 controls the restraint system in vehicles from Toyota. It constantly checks whether the sensors and firing circuits are in order, and in an accident decides which airbags and seatbelt pretensioners are triggered.

A detected fault appears via the airbag warning light. After an accident the unit stores crash data and locks itself.

Otherwise it stays in the background, and you won't notice it.

Why does the control unit 89170-04130 fail?

The most common cause with the 89170-04130 is crash data from an accident, which is stored even without a triggered airbag; an ordinary diagnostic tool cannot erase it. Other causes are aged components, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data arises from an event that the unit records; whether an airbag fired makes no difference to it.

Electronics age over time, and the unit then becomes more prone to faults.

Solder joints can go cold, and moisture and corrosion attack plug connections. Voltage spikes arise, for example, from a weak battery or when connecting to jump-start cables.

How can you tell that the 89170-04130 is defective?

If the system reports a defect on the 89170-04130, the airbag warning light stays on permanently or intermittently. An error message accompanies it, and a diagnostic tool cannot reach the control unit. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

The light is the system's direct feedback and deserves prompt attention.

If it stays on permanently, a prompt check is recommended.

Which vehicles is the 89170-04130 fitted in?

This concerns the control unit with part number 89170-04130. The unit is fitted in these vehicles: Toyota Tacoma N200 (2004-2015).

The vehicles in detail:

• Toyota Tacoma N200 (2004-2015)

The part number on the label of the removed unit shows whether you have the right unit in front of you; the comparison tells you no more than that.

Whether the control unit is defective or a connector or cable is the cause is shown only by reading out the fault memory. So have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 89170-04420, 89170-04570, 89170-04600, 89170-04650.

How does the repair of the 89170-04130 work?

Have the fault memory of the 89170-04130 read out first and attach the log. Then disconnect the battery before you remove the control unit. Create a repair order online and send the unit in well packed.

Airbag24 examines the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test.

Processing at Airbag24 usually takes 3–4 working days. Afterwards your unit goes back to you. 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 89170-04130 get to Airbag24?

The unit goes to Airbag24 as a parcel, or you arrange a UPS collection for an extra charge. The 89170-04130 comes back by UPS after the repair.

Put the repair order into the box and pack the control unit shock-proof.