Unlike standard OBD2 diagnostic scanners that can only clear temporary soft codes (like a loose seatbelt sensor), TachoSoft modifies the actual EEPROM dump files stored inside the module's microcontroller. It acts as an automated calculator, analyzing the binary data of a corrupted file and rewriting the specific hexadecimal lines responsible for locking the airbag system. Key Technical Specifications 6.4
Navigate through the dropdown menus to select the correct car maker, model, and corresponding module part number.
is a specialized diagnostic software designed to clear "crash data" from a vehicle's Airbag Control Unit (ACU). When a car is in an accident, the ACU stores a permanent fault code—often called a "hard code"—that typically cannot be cleared by standard OBD2 scanners and renders the module unusable. This software allows technicians to "reset" the module to its factory state, potentially saving the cost of replacing the entire unit. Key Features and Capabilities
: Alfa Romeo, BMW, Citroen, Fiat, Peugeot, Renault, Seat, Skoda, and VW.
Resetting a module from a crashed car and installing it in another vehicle is not recommended for safety-critical repairs. Airbag modules may have internal accelerometer damage, leaked capacitors, or corroded firing circuits. tachosoft airbag resetter v6.4
The process of using TachoSoft V6.4 generally follows these steps: Extraction:
, while purchasing the software—often available for around $25 to $30 —allows for multiple resets. How to Use TachoSoft V6.4 The process generally involves three main stages: Read the Dump : Use an external programmer (like a USB EEPROM Programmer
Connect your hardware EEPROM programmer to the chip using an SOIC8 test clip, or desolder the chip and place it into a programming socket.
Instead of relying on outdated standalone offline software, technicians use web-based clearing services. Users upload their read files to cloud databases where updated, verified scripts clean the data according to the exact module serial number. Unlike standard OBD2 diagnostic scanners that can only
The technician opens TachoSoft Airbag Resetter v6.4, selects the specific car make, model, and airbag module part number. The software then performs one of two actions:
Click "Clear" or "Calculate" to remove the crash string automatically. Save the newly modified "virgin" file.
: A reset tool only clears digital data. It cannot fix physically damaged internal sensors, blown resistors, or compromised capacitors inside the module. If a module suffered electrical shorting during a crash, it must be replaced.
: Because v6.4 is older legacy software, it runs best on Windows 7 or Windows 10 configured to run in "Compatibility Mode for Windows XP (Service Pack 3)" with Administrator privileges. is a specialized diagnostic software designed to clear
Requires an external EPROM or MCU programmer to read the physical chip (e.g., 95160, 68HC912D60) from the airbag module User Interface:
Save the new "clean" dump file and write it back to the chip using the programmer Reassembly:
Claims compatibility with over hundreds of airbag module variants across global brands (including Bosch, Siemens, Autoliv, and TRW).
Do you need for a specific vehicle model? Do you need help identifying a specific EEPROM chip layout ? Share public link
For automotive professionals, modern alternatives like the OBDSTAR P50 or Autel scanners are strongly recommended for safety, efficiency, and legal compliance. For the DIYer, attempting a bench reset is a complex electronic repair, not a simple diagnostic procedure.