What is a Toyota Celica T200 airbag control unit?
The Toyota Celica T200 airbag control unit is the central safety unit of the Supplemental Restraint System (SRS), which activates all occupant restraint systems such as airbags and seatbelt pretensioners in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of the entire airbag system, which is crucial for Toyota Celica T200 airbag control unit repair.
This electronic module processes signals from acceleration and crash sensors to precisely control airbag deployment in an emergency. It is designed for models with dual SRS airbags, i.e., driver and front passenger airbags.
The control unit is a digital diagnostic and control computer equipped with specific firmware. It includes an internal crash data storage system that can be read or reset after an accident.
Why is the Toyota Celica T200 airbag control unit defective?
A Toyota Celica T200 airbag control unit often fails because it stores crash data after an accident, which blocks the system and causes a persistent warning light. Internal hardware or software errors caused by age, overvoltage, or moisture can also lead to failure and require professional Toyota Celica T200 airbag control unit repair.
After a collision, so-called "hard codes" are stored in the control unit, preventing operation. These cannot be erased using standard OBD-II scanners; instead, they require special reset services.
Communication errors, such as faulty cables or internal malfunctions, can also lead to malfunctions. The module must then be diagnosed and, if necessary, repaired or replaced.
Common error codes for Toyota Celica T200 airbag control unit repair
Toyota Celica T200 airbag control unit repairs often result in specific error codes that directly indicate problems with the SRS module itself, rather than with sensors or airbag modules. These codes often require specialized diagnostics and a reset of the control unit.
- B1000 → Control unit communication error → Interruption of communication with the airbag ECU.
- B1015 → Faulty airbag control module → Internal malfunction or defect in the module.
- B107E → Airbag Module Error → General malfunction within the control unit.
- B1139 → Error within the SRS system → System-wide malfunction, often originating from the control module.
- B207F → SRS control unit error → Airbag control unit serious failure.
What part numbers are available for the Toyota Celica T200 airbag control unit repair?
For the Toyota Celica T200 airbag control unit repair, two 100% verified OEM part numbers directly from the Toyota manufacturer are relevant: 89170-20030 and 89470-20030. These numbers confirm exact compatibility with the airbag control unit for the 1994–1999 Celica T200 model.
Part number 89170-20030 is explicitly identified as the airbag control unit for the Toyota Celica T20 (1994–1999), identical to the T200. It can be found in detailed model descriptions.
Likewise, the number 89470-20030 has been verified as an OEM number on a used Celica T20 airbag control unit, confirming its validity. No other verified OEM part numbers from suppliers are available for this specific model.