Airbag control unit with part number 150800-2310

What is the function of Airbag Control Unit 150800-2310?

The component with part number 150800-2310 is an Airbag Control Unit (ACU) supplied by Autoliv. It serves as the central control unit for the entire Supplemental Restraint System (SRS) in certain Toyota models. Its primary task is to process sensor data to deploy airbags and seatbelt pretensioners in the event of a crash.

As a supplier‑provided part number, 150800-2310 is functionally identical to the corresponding Toyota Original Equipment Manufacturer (OEM) part numbers. The control unit continuously collects data from the vehicle’s acceleration and crash sensors.

In the event of a collision, the electronics analyze incoming signals within milliseconds and determine which restraint systems—such as front airbags, side airbags, or seatbelt pretensioners—need to be activated to provide optimal occupant protection.

What types of failures occur in Control Unit 150800-2310?

The most common cause of failure is the storage of crash data after an airbag deployment, which locks the system. Other issues include internal electronic faults that result in communication loss with the diagnostic tester or trigger specific fault codes such as B1100 (internal control unit error).

Following a crash in which airbags or seatbelt pretensioners have deployed, the unit permanently stores crash data in its internal memory (EEPROM/Flash). This safety feature necessitates replacement or professional repair.

Electronic components on the circuit board can also fail, often manifesting as specific fault codes. For example, errors like B0103 or B0108 indicate defects in the final stages of the airbag ignition circuits, while communication problems are frequently caused by faulty transceiver modules.

Similar fault patterns appear in other Toyota airbag control units, such as those with OEM numbers 89170-0DG20, 89170-0DG50, or 89170-0DG60, which operate on the same technical principles.

How do you recognize a defect in the Airbag Control Unit?

The primary indication of a defect in Control Unit 150800-2310 is a constantly illuminated or intermittently flashing airbag warning light on the instrument cluster. Often, a diagnostic tool will no longer be able to communicate with the control unit, or it may display error messages such as “Control Unit Fault.”

The airbag warning light is the clearest symptom, signaling to the driver that the restraint system is either non‑functional or only partially operational, potentially failing to deploy correctly in an accident.

Another clear sign is when the workshop’s diagnostic equipment cannot access the airbag control unit. The module stops responding to requests, making precise fault diagnosis impossible.

The fault memory may also contain specific entries such as “Crash Data Stored” or the general error code B1100 (internal control unit error), directly pointing to a defect within the module itself.

In which vehicles is Control Unit 150800-2310 installed?

The control unit with supplier part number 150800-2310 is explicitly documented for various generations of the Toyota Camry. At Airbag24, we repair this unit and functionally equivalent counterparts for a wide range of Camry models spanning multiple production years.

The part number 150800-2310 has been confirmed as an Autoliv replacement part for the following model series:

Toyota Camry XV10 (1991–1996)

Toyota Camry XV20 (1996–2000) and XV20 Facelift (2000–2001)

In addition, Airbag24 offers repairs for newer Camry models equipped with functionally related control units:

Toyota Camry XV50 (2011–2019)

Toyota Camry XV70 (2017–2020) and XV70 Facelift (2020–2024)

How is Control Unit 150800-2310 professionally repaired?

Upon submission to Airbag24, the control unit undergoes a comprehensive diagnostic process. Repair includes expertly erasing crash data from memory and restoring the electronics at the component level. A final test on a bench ensures full functionality, followed by 2 years’ statutory liability for defects.

First, an initial inspection visually and electrically examines the unit. Specialized diagnostic software reads the fault memory to pinpoint the exact cause—whether it’s a communication issue, an internal defect, or stored crash data.

The core of the repair involves reprogramming the memory module (EEPROM/Flash) to remove the crash lockout and reinitialize the device, while preserving the vehicle‑specific original coding.

If a hardware defect is present, the faulty electronic components—such as voltage regulators, ignition‑circuit drivers, or communication ICs on the circuit board—are replaced with precision. This provides a sustainable and cost‑effective alternative to an expensive new part.

Finally, the repaired control unit is tested on a specialized test bench. Here, all sensor inputs and ignition‑circuit outputs are simulated to ensure flawless operation under real‑world conditions.