Airbag control unit with part number 89170-87702

What is the function of Airbag Control Unit 89170-87702?

The component with part number 89170-87702 is an original Daihatsu OEM airbag control unit. It serves as the central control unit for the vehicle’s entire restraint system. Its primary task is to process data from crash sensors and precisely deploy the airbags and seatbelt pretensioners in the event of a collision.

As the central brain of the passive safety system, this control unit continuously monitors all connected components. It ensures that the system responds correctly in an emergency and provides occupant protection according to the manufacturer’s specifications. Therefore, its proper functioning is essential for vehicle safety.

Why does control unit 89170-87702 fail?

The most common cause of malfunction in control unit 89170-87702 is the storage of crash data after a collision. This data locks the unit and prevents normal operation, which manifests as a permanently illuminated warning light. Professional deletion of this data is then absolutely necessary.

Following an accident, the control unit is locked by the system to prevent further driving with a potentially compromised safety system. This lock is permanent and can only be lifted through specialized repair. If additional defects beyond data deletion are present, they will be identified during professional diagnostics.

For this particular vehicle model, alternative OEM part numbers such as 89170-87701 and 89170-87703 also exist; these parts perform similar functions and may exhibit comparable fault symptoms.

How do you recognize a defect in 89170-87702?

A typical defect in control unit 89170-87702 primarily shows up as a constantly lit or flickering airbag warning light on the instrument panel. Often, communication with a diagnostic tool is no longer possible, and error codes stored in the fault memory cannot be cleared.

The most obvious sign is the airbag warning light that fails to turn off after starting the vehicle. This indicates a serious fault in the restraint system requiring immediate inspection.

Another clear symptom occurs when a workshop using a diagnostic device can no longer access the airbag control unit. The unit stops responding to queries, making precise fault analysis via on-board diagnostics impossible.

In some cases, specific airbag system error messages appear directly on the display upon starting the vehicle, pointing to an internal fault within the control unit.

In which vehicles is control unit 89170-87702 installed?

The airbag control unit with part number 89170-87702 is specifically designed for vehicles manufactured by Daihatsu. At Airbag24, this control unit is predominantly accepted for repair on the following model, allowing significant cost savings compared to purchasing a new part.

Daihatsu Leeza L111 (model years 1986–1992)

How does the repair of 89170-87702 proceed at Airbag24?

Upon receipt at Airbag24, control unit 89170-87702 undergoes a comprehensive diagnosis. The core of the repair involves professionally erasing the stored crash data. Subsequently, flawless functionality is verified to restore full performance of the restraint system. A 12-month warranty is provided for the repaired unit.

The process begins with the proper removal of the defective control unit from the vehicle. After secure packaging, it is shipped to Airbag24. Alternatively, a workshop service is available in Düren (North Rhine-Westphalia), where removal and installation can take place on-site by prior appointment.

Our technicians conduct a detailed analysis and return the control unit to factory settings. This repair offers a cost-effective and sustainable alternative to expensive new purchases. Following successful testing, the component is fully operational again.

What shipping options does Airbag24 offer?

To send your defective control unit to Airbag24, you can deliver it yourself free of charge or use the convenient UPS pickup service from your preferred location. For returns, free standard options as well as faster express services are available, including cash-on-delivery.

For outbound shipments, you can either send the package yourself or arrange for UPS pickup. For returning the repaired unit, we provide several options: the free UPS standard shipping is the most common choice. If you’re in a hurry, you can opt for UPS express delivery.

Both standard and express shipping methods are also available with cash-on-delivery. Of course, you can also pick up your control unit in person at our facility in Düren.