What is a Honda Civic Type R airbag control unit?
The Honda Civic Type R airbag control unit is your vehicle's central safety unit, tirelessly monitoring all impact sensors and occupant restraint systems. It analyzes real-time data in the event of an accident and instantly deploys airbags and seatbelt pretensioners to ensure maximum safety for all occupants and store important crash data.
This essential ECU (Electronic Control Unit) continuously monitors various sensors throughout the vehicle. These include impact sensors, seat occupancy detection, seatbelt buckles, and rollover sensors.
In an emergency, the control unit evaluates the collected sensor data at lightning speed. It makes precise decisions about whether to deploy the airbags and seatbelt pretensioners and stores relevant crash data for later analysis.
The module also integrates driver and passenger seat position sensors, as well as weight sensors for intelligent passenger airbag deactivation. It also activates warning indicators in the instrument cluster and switch indicators for the SRS system.
The control unit is connected to the system via special, yellow-labeled airbag connectors, which feature secure locking mechanisms and short-circuit clips. It operates reliably when the ignition is ON and is robust against electrical interference.
Why is the Honda Civic Type R airbag control unit defective?
A Honda Civic Type R airbag control unit can fail due to internal malfunctions, such as those indicated by error codes 87-31 or 91-1x. Often, after an accident, the module is locked because crash data was stored, or inconsistencies occur in vehicle identification, making a Honda Civic Type R airbag control unit repair unavoidable.
A common reason for an apparent defect is the presence of stored crash data after an accident. This data blocks the control unit and prevents it from functioning normally, necessitating a reset.
Internal errors in the airbag control unit itself, such as defective electronic components, lead to functional failure. Such internal defects often manifest themselves through specific error codes in the diagnostic system.
Inconsistencies in the stored Model ID codes or Serial ID codes (e.g., error codes 85-63, 85-64) can also lead to failure. This is especially relevant after a control unit replacement or improper repair attempts.
Although less common, external factors such as water ingress, overvoltage, or physical damage can also cause a defect. A professional diagnosis is crucial to determine the exact cause and perform a successful repair.
Common error codes for Honda Civic Type R airbag control unit repair
In Honda Civic Type R airbag control module repair, certain error codes indicate problems with the control module itself rather than with sensors or airbags. These include internal defects, open circuits in the airbag module, or inconsistencies in vehicle-specific IDs, which require a precise diagnosis.
- 1-1 / 1-2 → Open circuit or high resistance in the driver airbag module → Fault in the control unit communication to the airbag module
- 85-63 → Model ID code inconsistent → Error in the vehicle-specific identification data of the control unit
- 85-64 → ECU Serial ID Code inconsistent → Incorrect or corrupted serial number data in the control unit
- 87-31 → Internal error in the airbag control unit (SRS Unit) → Defect or malfunction within the control unit
- 87-32 → Side Impact Airbag Cutoff Indicator Error → Problem with the display or internal logic of the side airbag cutoff indicator control module
- 91-1x → Internal error in the airbag control unit → Generic or specific internal control unit defect
- 91-2x → Short circuit in SRS indicator circuit → Electrical fault in the control unit's control of the warning light
These codes are OBD-II compliant and are read using manufacturer-specific diagnostic tools such as the Honda HDS. They allow for precise identification of the problem directly in the airbag control unit.
Errors like 87-31 or 91-1x often indicate that the control unit itself needs repair. After a crash, any stored crash data may need to be erased to reactivate the system.
A professional Honda Civic Type R airbag control unit repair can resolve these issues and restore the control unit to full functionality. Specialized workshops offer the necessary expertise and equipment for diagnosis and repair.
What part numbers are available for the Honda Civic Type R airbag control unit repair?
For Honda Civic Type R airbag control unit repairs, exact part number matching is crucial, as these modules are coded for specific vehicles. The primary OEM part number for the 9th generation (FK1/FK2/FK3) is 77960-TV0-G020-M4, although other numbers may also be relevant for adjacent Civic models.
The most important and exact OEM part number for the airbag control unit in the 9th generation Honda Civic Type R (FK1/FK2/FK3) is 77960-TV0-G020-M4 from Honda. This number has been verified multiple times and is confirmed by airbag control unit repair specialists.
In addition, there are other original OEM part numbers for neighboring Honda Civic models. These may be relevant as replacements or for similar model years, even if some of them come from suppliers such as Siemens.
- 77960-S5A-A87 (for earlier Civic models, Siemens supply)
- 77960-S5PA121M1 (for earlier Civic models)
- 77960-TBA-A06 (for newer Civic models)
- 77960-TGH-A02 / 77960-TGH-A01 (for newer Civic models, A01 is the predecessor of A02)
- 77960-TGG-A03 (replacement for 77960-S5A-A89, for newer Civic models)
All numbers listed are genuine OEM part numbers obtained from official Honda catalogs and reputable databases. However, it is essential that the part number exactly matches your vehicle's to ensure compatibility and safety.
Airbag control units are vehicle-specific and require precisely fitting OEM parts for a successful Honda Civic Type R airbag control unit repair. If in doubt, always consult a specialist workshop.