Toyota Picnic airbag control unit repair⁽¹⁾

What should be considered with Toyota Picnic airbag control units?

The airbag control unit evaluates the crash sensors, triggers the airbags and, where fitted, the belt tensioners, and monitors the entire system. If it detects a fault, the airbag warning light comes on. After an accident, the control unit stores crash data and locks itself.

The airbag system is safety-critical, so any fault should be checked promptly by a specialist workshop. Typical causes include crash data stored after an accident, ageing of the electronics, overvoltage, for example from battery problems, moisture on connectors, or communication faults on the CAN bus. Not every fault lies in the control unit itself.

Airbag24 repairs your own control unit once it has been sent in, and erases the crash data where necessary.

Which Toyota Picnic generations are there?

In our database, the Toyota Picnic is listed as one model series: the XM10, built from 1996 to 2001. This series is the first point of reference when matching a control unit.

• XM10 (1996–2001) – the model series listed in our database for the Toyota Picnic; the year of manufacture and the part number show the exact version.

Whether there was a model update within this production period cannot be reliably determined from the sources available. For that reason, do not rely on the model name alone when matching the unit, but check your vehicle's year of manufacture and the details printed on the control unit.

How do I identify my Toyota Picnic airbag control unit?

The part number on the label of the control unit determines which version is fitted. Compare it with the year of manufacture and equipment of your vehicle. The following part number is recorded for this model series.

• 89170-44010

This list does not claim to be complete. Fault codes stored in the fault memory can also help narrow things down. Examples from our fault code list for this model series include B1000 (internal fault in the airbag control unit), U0151 (communication with the airbag control unit lost), B1800 (driver airbag ignition circuit faulty) and B1805 (passenger airbag ignition circuit faulty).

A single fault code alone does not prove a defect in the control unit. Only an inspection by a specialist workshop shows whether the cause lies in the control unit.

What airbag equipment does the Toyota Picnic have?

Driver and front passenger airbags are documented for the Toyota Picnic. Which further airbags were fitted depends on the market, year of manufacture and trim level.

Further airbags such as side, head or knee airbags are not reliably documented for this model series in the sources we reviewed. A workshop can confirm the exact equipment of your vehicle from the vehicle identification number (VIN).

In an emergency, the airbag control unit coordinates all fitted airbags. If it is defective or has stored crash data after an accident, the airbag system may be impaired.

The path to repair: have the fault memory read out. Have the control unit removed by a specialist workshop, which disconnects the battery in the process. Then create a repair order online and send the unit to us by parcel. Processing usually takes 3–4 working days, during which we check, repair and test the unit.

The repaired control unit returns with all vehicle data and is ready for immediate use once refitted — coding or programming is not required.