Airbag control unit with part number 89170-06242

What does the airbag control unit 89170-06242 do?

The airbag control unit 89170-06242 coordinates the restraint system (SRS) of Toyota in the vehicle. It processes the crash sensor system and, in an emergency, decides which airbags and seatbelt pretensioners are triggered. Detected faults appear via the airbag warning light.

In the background the unit constantly compares measured values with the specifications. If something deviates, it creates an entry in the fault memory.

An accident causes the unit to store crash data and lock itself. The repair is the only way to end this lock.

Why does the control unit 89170-06242 fail?

The most common cause is crash data stored after an accident, even without a triggered airbag; a standard diagnostic tool cannot erase them. Other causes are aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

• Ageing of the electronic components
• Cold solder joints on the circuit board
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or jump-starting

The crash data show the state of the system after the accident, but they do not necessarily point to component damage.

Which of these causes is actually present is shown only by the examination.

How can you tell that the 89170-06242 is defective?

A defect in the 89170-06242 shows up as an airbag warning light that stays on permanently or intermittently, together with a fault message in the instrument cluster. In addition, the diagnostic tool cannot establish a connection with the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

Such signs are a clear prompt to have the system checked. The warning light reports exactly what it is meant to report, and it must not be overlooked.

Which vehicles is the 89170-06242 fitted in?

The airbag control unit 89170-06242 is fitted in these vehicles: Toyota Solara ACV30 (2004-2008).

The vehicles at a glance:

• Toyota Solara ACV30 (2004-2008)

Before removal, compare the part number on the unit with this page; this only clarifies the identity of the unit. Have the fault memory read out beforehand as well, because only the log shows whether the control unit itself is defective or whether a plug or cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 89170-06230, 89170-06231, 89170-06232, 89170-06240, 89170-06241.

How does the repair of the 89170-06242 work?

First have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit. Next, create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is tested on the test bench, components are repaired and stored crash data are erased. Finally a function test is carried out before the unit is returned.

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 89170-06242 get to Airbag24?

The route to Airbag24 is by parcel or via a UPS collection booked for an extra charge. Returns are made by UPS.

Place the printed repair order in the parcel and pack the control unit so that it is protected against knocks.