What is D-Tech Core?

D-Tech Core is a free, PC-based Honda ECU diagnostic tool built by DynoTraxx. It connects directly to your motorcycle's Engine Control Unit (ECU) via a standard FTDI USB cable to provide real-time sensor data and fault code management.

The D-tech Core is engineered to address the specific diagnostic requirements of the local small-displacement Honda ecosystem. We believe that essential maintenance and troubleshooting capability should be accessible to every tuner and mechanic.

What Can It Do?

• Live Sensor Dashboard — Real-time monitoring of RPM, TPS, MAP, ECT, IAT, battery voltage, injector timing, ignition advance, and more.
• Interactive Data Graphing — Visual trend analysis over 5–30 second windows to catch intermittent sensor dropouts or electrical noise.
• DTC Scanning & Interpretation — Read stored and current fault codes with plain-English descriptions.
• DTC Memory Clearing — Erase stored error codes and turn off the warning light after repairs.
• ECU Adaptive Reset — Clear learned values from the ECU, essential after replacing a sensor or cleaning the throttle body.
• Calibrated Readings — See correct sensor values in proper units (°C, V, kPa, %, RPM).

Quick Bike Reference

D-Tech Core currently supports the following Honda models. Bike detection is automatic via ECM ID.

What You Need

While the software is free, a physical Diagnostic Kit is mandatory. You cannot communicate with the bike without the correct hardware.

DLC Adapter Types

• Honda DLC Red 6-Pin Connector — For Euro5-compliant and newer models.
• Honda DLC White 4-Pin Connector — For older fuel-injected models.

Windows 10/11 Laptop

FTDI OBD2 USB Cable

Honda 4-Pin

Honda 6-Pin

Where to Download

D-Tech Core is distributed exclusively through GitHub Releases. Hosting on GitHub ensures trusted, verified delivery and avoids browser security blocks associated with lesser-known download sources.

→ Go to GitHub Releases Page

Installation Steps

1. Download the ZIP Download the latest D-Tech_Core_v*_Setup.zip file from the GitHub Releases page.
2. Extract the ZIP Right-click the file → Extract All. You will see three files: The main installer D-Tech_Core_v*_Setup.exe, the VC_redist.x64.exe runtime, and the CDM2123620_Setup.exe FTDI driver.
3. Install Drivers & Runtimes (Critical) Inside your extracted folder, you MUST install the two additional files to ensure the software will run:
   ⚠️

   Required for first-time setup:
   1. Run CDM2123620_Setup.exe to install FTDI Cable Drivers.
   2. Run VC_redist.x64.exe to install C++ Runtimes.
4. Run the Setup Double-click the D-Tech_Core_v*_Setup.exe file. If Windows warns about "Unknown Publisher", click "More info" → "Run anyway".
5. Anti-Scam Notice Read the important notice about scam prevention. Click "I understand" to proceed.
6. License Agreement Review the license terms. Click "I Agree" to continue.
7. Choose Components D-Tech Core (Required) is pre-selected. Optionally add Start Menu and Desktop shortcuts.
8. Choose Install Location Default: C:\Program Files\DynoTraxx\D-Tech Core. Change if needed.
9. Launch Check "Run D-Tech Core" on the finish page and click Finish. You can also launch the program anytime using the D-Tech Core shortcut on your desktop.

FTDI Driver Installation

The FTDI driver allows Windows to recognise the USB cable as a serial device. Most Windows 10/11 systems install it automatically via Windows Update when the cable is first plugged in.

1. Plug in the FTDI cable Connect the USB end to your PC. Windows may auto-install the driver.
2. Verify in Device Manager Open Device Manager → expand Ports (COM & LPT). You should see a USB Serial Port (COMx) entry.
3. Manual Install (if needed) If the device shows a yellow warning icon, run the CDM2123620_Setup.exe file included in your extracted folder to install the driver manually.

Uninstalling

To remove D-Tech Core from your computer:

• Go to Windows Settings → Apps → search for "D-Tech Core" → click Uninstall.
• Or run Uninstall.exe directly from the install directory.

Application Overview

The main window interface elements are as described in the table below:

Data Tab Selector

Switch between the DTC view to check for errors, the Live Data view & Reporting.

Adapter Selection

Choose the specific hardware interface or COM port used to link your computer to the ECU.

Connect Button

Toggle this to establish or terminate the live data stream between the software and the vehicle.

ECU Mode

Displays the ECU connection state, whether it is currently Disconnected or in a specific diagnostic state.

ECM Info

Displays the identification number of the connected Engine Control Module and the flash count.

Data Area

Shows the active tab's content (DTC list, Sensor Grid, or Graphs).

Bike Model

Indicates current connected bike model.

Data Throughput

Displays live communication speeds, showing (TX) and (RX) in bytes per second including baud rate speed.

Update Notification

Shows the notification if a newer version is available for download.

About

Access software information.

Connecting the Adapter to the Bike

1. Locate the DLC port The Diagnostic Link Connector is usually located under the seat, near the battery, or behind a side panel. Consult your bike's service manual for the exact location.
2. Connect the adapter chain Plug the FTDI OBD2 cable into the DLC adapter (4-pin or 6-pin), then connect the adapter to the bike's DLC port.
3. Turn the ignition ON The engine does not need to be running for DTC scanning. For Live Data, you can run the engine or just have ignition ON.

Connecting to an ECU

1. Plug in the hardware Connect the FTDI cable to your PC (USB) and to the bike (DLC adapter).
2. Turn ignition ON The ECU must be powered. The engine does not need to be running.
3. Select the adapter The app auto-discovers connected FTDI devices every 2 seconds. Your adapter should appear in the dropdown automatically.
4. Click Connect The status bar will show "Initializing…" as the K-Line handshake begins.
5. Wait for Diagnostic Mode Once the handshake completes, the mode changes to "Diagnostic Mode". ECM ID and Flash Count populate automatically.

To disconnect, simply click the Disconnect button. The device list auto-refreshes after disconnection.

Understanding ECU Modes

The ECU Mode indicator in the header bar reflects the current state of the connection:

Live Data

The Live Data tab displays real-time sensor readings from the ECU. The screen is split into two panels:

Data Panel (Left)

Text grid showing all sensor names, values, and units. Updates in real-time.

Graph Panel (Right)

Two interactive plots for visual trend analysis. Helps catch intermittent sensor dropouts or noise over 5–30 second windows.

Available Sensors

DTC (Diagnostic Trouble Codes)

The DTC tab lets you read and manage fault codes stored in the ECU.

Reading DTCs

When connected in Diagnostic Mode, fault codes are automatically retrieved and displayed in a table. Each code shows its ID and a plain-English description of the fault.

The system distinguishes between:

• Current Faults — Active problems happening right now.
• History Faults — Past intermittent issues stored in ECU memory.

Clearing DTCs

After completing a repair, click the Clear DTCs button to erase stored fault codes and turn off the MIL (warning light).

Resetting Learned Data

Click Reset Learned Data to clear the ECU's adaptive parameters. This is essential after:

• Replacing a sensor (TPS, IAT, ECT, etc.)
• Cleaning the throttle body
• Replacing or servicing the IACV

DTC List Area

Show detected DTCs for Current & History faults.

Clear DTC Codes

Button to clear the DTC list.

Clear Learned Data

Resets adaptive parameters (fuel trims, IACV steps) to factory defaults.

Diagnostic Reporting

D-Tech Core v0.5 introduces professional PDF reporting, allowing you to generate and save detailed health checks for every bike you service.

1. Customer & Vehicle Info Enter the owner’s name, contact, and mileage. These details will appear in the report header. The Vehicle Plate is mandatory; the generate button will remain disabled until it is entered.
2. Workshop Info (One-Time Setup) Click "Edit Business Info" to set your workshop's name, address, and contact. This info is saved locally in your Documents/D-Tech Core folder and will automatically appear on every report.
3. Report Readiness The Readiness panel shows two status indicators: ECU Connection and Vehicle Plate. Both must be green before a report can be created.
4. Generate Report Click this button to capture a snapshot of the current live data and fault codes. A PDF will be generated and opened automatically for printing or saving.
5. Open Reports Folder Quickly access all your previously generated diagnostic reports in Windows Explorer. Reports are named by plate number and timestamp.

Customer & Vehicle Info

Enter owner details and the mandatory Vehicle Plate number here.

Workshop Profile

Setup your business details once; they will be saved and added to every report.

Report Readiness

Status indicators showing if the ECU is connected and the plate is entered.

Generate Report

Click to create the PDF report once readiness indicators are green.

Auto-Update Notification

D-Tech Core automatically checks for new versions on launch and again after 2 minutes. If a newer version is available:

• A green "v* Available" banner appears in the footer.
• Click the Download button to open the release page in your browser.

An internet connection is required for update checks.

Complete list of Diagnostic Trouble Codes supported by D-Tech Core. When a DTC is active, the corresponding sensor value on the Live Data dashboard will be highlighted in red.

App Won't Open (New Install or Update)

Symptoms: You click the D-Tech Core icon, but nothing happens, or an error about "missing DLLs" appears.

Fix: This usually means the required support files were not installed. Go to your extracted installation folder and run these two files:

• CDM2123620_Setup.exe — Installs the FTDI cable drivers.
• VC_redist.x64.exe — Installs the Microsoft C++ Runtimes.

After installing both, try launching the app again.

Adapter Not Detected

Symptoms: The dropdown shows "No devices found" or "FTDI driver not installed".

• Fix: Install the FTDI driver (see Chapter 3.3).
• Check that the USB cable is securely plugged in.
• Try a different USB port.
• Click Refresh in the app.

Connection Fails / Stuck at "Initializing"

Symptoms: The app stays on "Initializing…" and never reaches Diagnostic Mode.

• Verify the DLC wiring — the adapter must be firmly connected.
• Ensure the ignition is ON.
• Check that the correct DLC adapter type is used (4-pin vs 6-pin).
• Try disconnecting and reconnecting.

ECU Mode Shows "Ignition Off"

Cause: The ignition switch is not ON, or the kill switch is active.

Fix: Turn the ignition to the ON position. Ensure the engine kill switch is in the RUN position.

"Unknown Model" in Footer

Cause: The ECM ID reported by the bike is not in the built-in database.

Note: Most diagnostic functions (Live Data, DTC) might still work normally. Only the model name display is affected.

Program Cannot Launch

Fix: Reinstall all three files in your extracted folder to ensure a clean setup:

• Run D-Tech_Core_v*_Setup.exe
• Run CDM2123620_Setup.exe (Drivers)
• Run VC_redist.x64.exe (Runtimes)

Graph Display Issues

The system targets a 60 Hz display refresh rate. If you are using a monitor with a refresh rate above 100 Hz, the 30-second graph interval may not display data completely. This is a known limitation.

Update Notification Not Appearing

• The app checks twice — on launch and again after 2 minutes.
• An active internet connection is required.
• If the server-side version metadata has not been updated, the notification will not trigger.

Disclaimer

This product is provided "as is" without warranty of any kind, express or implied. DynoTraxx shall not be liable for any damages arising from the use of this product.

All product names, logos, and brands are property of their respective owners. All company, product, and service names used are for identification purposes only. Use of these names, trademarks, and brands does not imply endorsement.

License

By installing D-Tech Core, you agree to the license terms shown during the installation process. Please refer to those terms for full details regarding usage rights and restrictions.

Credits & Contact