Airbag control unit with part number 89170-52130

What does the airbag control unit 89170-52130 do?

The airbag control unit 89170-52130 evaluates the signals from the crash sensors within the restraint system (SRS) of Toyota. In an accident it decides within milliseconds which airbags and seatbelt pretensioners are triggered.

In addition, it monitors the system continuously. Faults that are found are shown via the airbag warning light in the instrument cluster.

After an accident it secures crash data and locks itself. The lock is lifted only by the repair.

Why does the control unit 89170-52130 fail?

The most common cause for the 89170-52130 is crash data from an earlier accident, even if no airbag was triggered in it. Other causes include ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remains stored, even though a normal diagnostic tool cannot clear it. Airbag24 removes it during the repair.

Ageing electronics and cold solder joints are among the causes that do not only arise after an accident. They are therefore part of the check.

Moisture, corrosion and voltage spikes, for example from a weak battery or a jump start, act on the electronics and can cause malfunctions.

How can you tell that the 89170-52130 is defective?

The 89170-52130 shows a defect through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition come a fault message, a missing connection to the diagnostic tool and a fault memory that cannot be cleared.

The warning light in the instrument cluster remains the clearest indication: it lights up permanently or flickers intermittently, and the diagnostic tool cannot reach the control unit. A defect is thus indicated, and the vehicle reports it itself.

If airbags and seatbelt pretensioners then do not deploy in an emergency, this is a consequence that may possibly be impossible to prevent. This condition is therefore to be taken seriously.

Which vehicles is the 89170-52130 fitted in?

The 89170-52130 is fitted in these vehicles: Toyota Echo XP10 (1999-2002) and XP10 Facelift (2002-2005).

This list names the vehicles to which the control unit fits:

• Toyota Echo XP10 (1999-2002)
• Toyota Echo XP10 Facelift (2002-2005)

The part number on the label of the removed unit can be compared with this page. This shows only whether it is the right unit. Have the fault memory read out beforehand, since only this 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 89170-52050, 89170-52310-93C56.

How does the repair of the 89170-52130 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the 89170-52130. Afterwards create the repair order online. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, clears the crash data and carries out a function test. This time limit applies only to checking, repairing and testing at Airbag24.

Afterwards your own unit goes back to the sender. 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 89170-52130 get to Airbag24?

You send the 89170-52130 as a parcel, or alternatively book a UPS collection for an extra charge. After the repair Airbag24 sends it back by UPS.

The printed repair order goes into the parcel. Pack the unit shock-proof so that it arrives undamaged.