What is a Subaru Forester tS airbag control unit?
The Subaru Forester tS airbag control unit is the central electronic control unit that monitors and controls the entire occupant restraint system. It detects signals from impact sensors, decides on airbag and seatbelt pretensioner deployment, and stores important diagnostic data, thus ensuring the safety of vehicle occupants.
This control unit, also called the SRS control unit or airbag control module, is essential for the precise coordination of all airbag components. It is designed for 12V electrical systems and processes data from various sensors. The unit is programmable based on the vehicle's VIN.
It continuously monitors the system status and can activate the airbag warning light in the event of a fault. After an accident, it stores important crash data for later analysis. Integration with other vehicle systems ensures optimal protection.
Why is the Subaru Forester tS airbag control unit defective?
The Subaru Forester tS airbag control unit often malfunctions because it stores crash data after an accident and then becomes blocked, or because internal electronic components such as the EEPROM are damaged. Short circuits, open circuits, or power supply problems can also lead to failure.
Internal malfunctions or an EEPROM data error are typical causes that require repair of the Subaru Forester tS airbag control unit. This often leads to a permanently illuminated airbag warning light in the dashboard.
External influences such as moisture or electrical surges can also damage the control unit's sensitive circuit board. A timely diagnosis is essential to restore vehicle safety.
Common error codes for Subaru Forester tS airbag control unit repair
During Subaru Forester TS airbag control unit repairs, specific error codes may occur that indicate internal problems with the unit. These range from communication errors with the control unit itself and short circuits to internal malfunctions of the airbag module or faulty power supply. These codes aid in targeted diagnosis.
- B1000 → Control unit communication error → Signal transmission interrupted
- B1020 → Short circuit to ground on the airbag module → Electrical connection faulty
- B1025 → Open circuit in the airbag circuit → Cable or component defective
- B1040 → Airbag module internal malfunction → Hardware error in the control unit
- B1050 → Error in the diagnostic memory of the airbag control unit → Data corruption after an accident
- B1070 → Sensor connection error → Connection to the sensor is faulty
- B1100 → Faulty voltage supply to airbag control unit → Insufficient power supply
- B1140 → Airbag ignition circuit fault → Defective trigger circuit
- B1180 → EEPROM data error in the airbag control unit → Internal memory damaged
- B1240 → Faulty data communication with airbag main control unit → Internal bus communication disrupted
What part numbers are available for the Subaru Forester tS airbag control unit repair?
Several exact OEM part numbers are relevant for Subaru Forester tS airbag control unit repairs, including the original Subaru part number and compatible supplier part numbers. These numbers guarantee the correct fit and function of the control unit for your model, although recoding may be required after installation.
The most important OEM part numbers for the Subaru Forester tS airbag control unit have been carefully researched. These numbers are crucial for correctly identifying the required replacement part.
It's always advisable to check the part number on the control unit installed in your vehicle, as compatibility depends on the exact vehicle configuration. A specialist workshop can determine the correct part number for your Subaru Forester tS model.
The following part numbers are verified as suitable airbag control units for the Subaru Forester, especially for the tS series:
- 98221FC210 → Subaru Genuine Airbag Control Unit → For Forester tS and similar models
- 1523004370 → Supplier (Autoliv) Replacement number → Compatible with 98221FC210
- 1523007000 → Supplier (Autoliv) Airbag Control Unit → Compatible for Forester 2004-2008
- 98221SA080 → Subaru Alternative OEM Part Number → Replacement for Forester 2004-2008
Other components such as airbag modules or crash sensors are not relevant as control unit types. Professional programming after replacement or repair is essential for the full functionality and safety of your Subaru Forester TS.