What is a Toyota Voxy R70 airbag control unit?
The Toyota Voxy R70 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle, making it crucial for your safety.
This electronic control unit, also known as the SRS module, is designed specifically for the Toyota Voxy R70 (model years 2007-2014). It coordinates the deployment of airbags and seatbelt pretensioners in the event of a collision.
The unit continuously collects data from various crash sensors in the vehicle. In the event of an accident, it precisely decides which safety components need to be activated.
The control unit also stores important event data and error codes in the EEPROM. These can be read for professional diagnostics or for Toyota Voxy R70 airbag control unit repair.
Why is the Toyota Voxy R70 airbag control unit defective?
A Toyota Voxy R70 airbag control unit often fails because it permanently stores crash data after an accident, simulating a malfunction. Internal electronic errors, overvoltage, or moisture damage can also cause failure, causing the system to lose its safety function and necessitating a Toyota Voxy R70 airbag control unit repair.
The most common cause of a defect is the storage of so-called hard codes or crash data after an accident. These block the system, even if there is no physical damage to the control unit.
In rare cases, the control unit can also be damaged by aging, faulty wiring, or water ingress. This leads to internal errors that prevent proper function.
A broken or faulty airbag control unit usually causes the SRS warning light to illuminate in the dashboard. Immediate diagnosis is essential to ensure safety.
Common error codes for Toyota Voxy R70 airbag control unit repair
Toyota Voxy R70 airbag control unit repairs often result in generic B-codes, which indicate communication problems or internal malfunctions within the control unit. These error codes are not specific to a single part number but indicate a general failure of the airbag module, requiring a precise diagnosis.
There are no publicly available error codes specific to the Toyota Voxy R70 airbag control unit that are exclusively tailored to the listed OEM part numbers. However, there are typical B-codes that indicate control unit problems.
These codes indicate internal system errors or communication problems within the airbag control system. A professional diagnosis with a special OBD-II airbag scanner is essential.
- B1000: Indicates a general communication error of the airbag control unit, indicating a faulty connection.
- B1015: Indicates a faulty airbag control unit itself, often an indicator of an internal defect in the unit.
- B1139: Indicates a general SRS system fault that often originates from the control module and requires a comprehensive inspection.
- B207F: Indicates a specific error in the SRS control module, which may require more in-depth repair of the module.
Crash data or "hard codes" are stored in the control unit after an accident and must be erased using special EEPROM reprogramming. A simple reset function is not sufficient to restore full functionality.
What part numbers are available for the Toyota Voxy R70 airbag control unit repair?
For the Toyota Voxy R70 airbag control unit repair, two 100% verified OEM part numbers are primarily relevant: the Toyota OEM number 89170-42D50 and the Autoliv supplier number 152100-4560. These numbers refer exclusively to the airbag control unit for the 2007-2014 model year and are essential for correct part identification.
The number 89170-42D50 is the original Toyota OEM part number for the airbag control unit in the Toyota Voxy R70. It has been validated for model years 2007 to 2014 and is compatible with the NOAH/VOXY R70 series.
Additionally, the manufacturer number 152100-4560 is used for the same control unit by Autoliv, a leading supplier of airbag systems. Both numbers are listed in professional spare parts databases.
These part numbers refer exclusively to the airbag control unit (SRS) and not to other airbag components or sensors. A careful check of the VIN is always advisable when choosing a Toyota Voxy R70 airbag control unit for repair.