Daihatsu Sirion M600 airbag control unit repair

What is a Daihatsu Sirion M600 airbag control unit?

The Daihatsu Sirion M600 airbag control unit is the central electronic control unit responsible for occupant safety in the event of a collision. It continuously monitors sensors in the vehicle, detects an accident, and precisely deploys the airbags and seatbelt pretensioners to prevent serious injuries. After a crash, it stores important event data.

This module forms the heart of your Daihatsu Sirion M600's passive safety system. It is crucial for the proper functioning of all restraint systems.

An intact control unit is essential because it ensures quick and correct reaction in the event of a collision.

Why is the Daihatsu Sirion M600 airbag control unit defective?

The Daihatsu Sirion M600 airbag control unit can fail because it stores crash data after an accident, preventing further operation, or due to internal errors, electronic failures, or communication disruptions. Aging and voltage spikes can also lead to malfunctions or complete failure.

The control unit often stores crash data after an airbag is deployed, which results in the system being locked.

Internal malfunctions or wear and tear of components can cause the module to no longer work correctly and activate a warning light in the dashboard.

Sometimes external influences such as moisture, short circuits or too low on-board voltage can also cause a defect.

Common error codes for Daihatsu Sirion M600 airbag control unit repair

When diagnosing a faulty Daihatsu Sirion M600 airbag control unit, specific error codes are read out, indicating internal problems or communication errors. These B-codes are essential for identifying the cause of the failure and performing a targeted repair instead of replacing the entire module.

• B1000 → Control unit communication error → Indicates a fault in the data transmission within the airbag system.
• B1015 → Faulty airbag control unit (Module Fault) → Indicates a general internal defect in the control unit.
• B107E → Airbag module related error → Affects the control unit directly or its connection to the airbag modules.
• B1139 → Internal error in the airbag control unit → Signals a malfunction in the internal software or hardware of the module.
• B207F → SRS unit (control unit) error → Supplemental Restraint System (SRS) unit general error.
• B0091 → Control Unit Error → Another code that indicates problems within the airbag control unit itself.

What part numbers are available for the Daihatsu Sirion M600 airbag control unit repair?

While there is no single, 100% verified OEM part number for the Daihatsu Sirion M600 airbag control unit that is confirmed exclusively for this model, repair shops are often familiar with modules like type 89170-B1170, which frequently appears in the Sirion/Boon environment. Precise identification often requires the VIN.

The number 89170-B1170 is often referred to as the airbag module or control unit for the Daihatsu Sirion, also in variants such as the Boon.

It is important to note that an accurate part number assignment for your Daihatsu Sirion M600 airbag control unit is best done through a specialist workshop or the official Daihatsu parts catalog using the chassis number.

Specialized airbag control unit repair services can often handle modules that do not have an exact OEM number confirmation by testing and repairing the internal hardware.