Lexus HS ANF10 airbag control unit repair

What is a Lexus HS ANF10 airbag control unit?

The Lexus HS ANF10 airbag control unit is the central safety unit in the Lexus HS 250h (ANF10), which activates all occupant restraint systems in the event of an accident. It precisely monitors sensors, stores important crash data, and ensures the proper functioning of all airbag modules and seatbelt pretensioners in the vehicle to provide maximum safety.

This module forms the heart of the Supplemental Restraint System (SRS) for the Lexus HS250h model years 2010–2015.

It is critical for deploying up to 10 airbags, including front, side, and knee airbags, and communicates with other vehicle systems.

Why is the Lexus HS ANF10 airbag control unit defective?

A Lexus HS ANF10 airbag control unit can malfunction because it stores crash data after an accident, preventing it from being reinitialized, or due to internal electronic failures that lead to communication errors. This often requires a professional Lexus HS ANF10 airbag control unit repair, as otherwise the system can no longer ensure occupant safety.

Common reasons for failure are electronic defects in internal components or water damage.

The control unit may also be defective if, after an accident, even a minor one, crash data is permanently stored that prevents the airbag light from being reset.

In such cases, a professional diagnosis and, if necessary, a Lexus HS ANF10 airbag control unit repair in a specialized workshop is essential.

Common error codes for Lexus HS ANF10 airbag control unit repair

When diagnosing the Lexus HS ANF10 airbag control unit for repair, specific error codes may occur that directly indicate problems with the control unit itself. Recognizing these codes is essential to confirm the need for a Lexus HS ANF10 airbag control unit repair and initiate targeted repair measures.

• B1000 → Control Unit Communication Error → An interruption or malfunction in the data connection of the airbag control unit (ECU).
• B1100 → Crash data stored (deletion blocked) → The control unit has stored collision data after an accident and is blocked from normal function.
• B1861 → Driver Side Knee Airbag Open Circuit → An open circuit in the driver side knee airbag circuit monitored by the control module.

These error codes are primarily control unit-related and exclude errors in other airbag components.

In particular, code B1100 often requires specialized services to erase the crash data, which is a common form of Lexus HS ANF10 airbag control unit repair.

What part numbers are available for the Lexus HS ANF10 airbag control unit repair?

For Lexus HS ANF10 airbag control unit repair, it is crucial to identify the exact part number to ensure compatibility and functionality. The only 100% verified original OEM part number for the Lexus HS ANF10 (HS 250h) airbag control unit is 89170-75060, which comes directly from Lexus/Toyota.

This specific number is listed in official Lexus parts catalogs and confirmed as a genuine replacement part.

No alternative or supplier-specific replacement numbers from manufacturers such as Bosch or Continental were found that have the same exact function and model compatibility.

Using the correct part number 89170-75060 is of utmost importance for a successful and safe Lexus HS ANF10 airbag control unit repair.