What is a Honda Pilot YF3 airbag control unit?
The Honda Pilot YF3 airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors in the vehicle, stores important crash data, and ensures the correct functioning of the entire restraint system for maximum occupant safety.
This module, also called SRS (Supplemental Restraint System) control unit, is crucial for the passive protection of vehicle occupants.
It receives signals from impact and rollover sensors and decides in milliseconds whether to trigger the corresponding protection systems.
Why is the Honda Pilot YF3 airbag control unit defective?
A Honda Pilot YF3 airbag control unit may be defective because it permanently stores crash data after an accident, has internal electronic faults, or has been damaged by an overvoltage. These defects cause the safety systems to no longer function properly and the airbag warning light to remain active.
The most common cause of a defect is the storage of crash data after an airbag deployment, which requires a reset.
Internal component defects, such as those caused by aging, moisture or voltage fluctuations, also often lead to malfunctions in the control unit.
A defective control unit impairs the functionality of the entire airbag system, which represents a significant safety risk.
Common error codes for Honda Pilot YF3 airbag control unit repair
When repairing the Honda Pilot YF3 airbag control unit, specific error codes often occur. These codes indicate internal defects or communication problems within the module. These codes help diagnose whether the control unit itself needs to be repaired or replaced, as they relate directly to the ECU.
- B1000: Control unit communication error → The airbag ECU cannot communicate correctly with other systems.
- 6-7: Internal error in the airbag control unit → A check of the internal voltage or components is required.
- 87-31: SRS Unit Internal Error → A generic internal system error of the airbag module has occurred.
- 91-1x: Internal error in the control unit → Specific internal malfunction that requires more detailed diagnosis.
- 85-63: Model ID code or variation inconsistent → The control unit does not recognize the correct vehicle configuration.
- 85-64: ECU Serial ID Code Inconsistent → The serial number of the control unit does not match the vehicle data.
What part numbers are available for the Honda Pilot YF3 airbag control unit repair?
For repairing the Honda Pilot YF3 airbag control unit, the original OEM part numbers 77960-TG7-A110M2 and 77960-S9V-A013C1 are primarily relevant. These numbers are assigned by Honda and identify the specific control units installed in the second-generation Pilot (YF3).
Part number 77960-TG7-A110M2 is often specified for later model years of the YF3 series and the Honda Pilot as a whole.
The number 77960-S9V-A013C1 is also a confirmed OEM number for Honda Pilot airbag control units, suitable for the YF3 series.
It is important to note that suppliers such as Bosch or Continental do not maintain separate, publicly available OEM part numbers for these specific Honda control units.
Functionality and features of the Honda Pilot YF3 airbag control unit
The Honda Pilot YF3 airbag control unit is the brain of the occupant protection system, processing signals from crash and position sensors to precisely deploy airbags and seatbelt pretensioners in an emergency. It continuously monitors the system, stores crash data, and signals faults via the warning light to ensure vehicle safety.
The module detects crash events by evaluating sensor signals such as impact, side and rollover sensors.
It controls the precise deployment of the front, side and curtain airbags as well as the seat belt pretensioners to ensure optimal protection for all occupants.
In addition, it integrates sensor data from the driver's seat position or passenger weight to adjust the airbag deployment force or deactivate the airbag if necessary.
Repair and replacement of the Honda Pilot YF3 airbag control unit
Repairing the Honda Pilot YF3 airbag control unit is a cost-effective alternative to purchasing a new one, especially after an accident, as it erases crash data and resets the module to factory settings. A professional service center can test the control unit, correct internal errors, and restore the airbag system to full functionality.
After an accident, the control unit stores accident data and must be reset to be fully functional again.
Specialized workshops can reprogram the control unit's EEPROM to erase stored crash data and restore the module to its factory default state.
When replacing a defective module, vehicle-specific programming or VIN coding is often necessary to ensure compatibility and correct function.