Vehicle Connect is the part of EasyTune that talks to your vehicle's ECU through your OBD-II cable. Once a vehicle is connected, it gives you:
- Flash ECU: flash tune files.
- Read DTC: read and clear diagnostic trouble codes.
- Data Logging: record live data.
- Read ECU: save a copy of the ECU's memory.
- OBD Functions: run the functions available for your ECU.
Each of these needs a connected vehicle. If you open one without a connection, it shows No Vehicle Connected and a Go to Vehicle Connect button.
- Install the driver for your cable. For an EasyFlash, set it up with the EasyFlash app from the download page.
- Close any other software that uses the cable.
- Make sure you're online. Connecting checks the vehicle with the EasyTune server.
- Turn the vehicle off and plug the cable into the OBD-II port.
- Plug the cable into your computer over USB.
- Turn the key to accessory. Don't start the engine.
- Open Vehicle Connect and click Refresh.
EasyTune finds the cable, reads the VIN and ECU details, and checks with the EasyTune server that the ECU's firmware is supported. When it finishes, the page shows Connected vehicle with the VIN, and the Vehicle Connect tools appear below it.
- If an EasyFlash is plugged in, EasyTune uses it straight away.
- If several J2534 drivers are installed, EasyTune uses the Tactrix OpenPort driver when it finds one. Otherwise it shows Select Driver: pick the driver for your cable and click Connect, or click Try all drivers.
- To pick the driver yourself, click Using a different cable?, or Change driver on the error screen.
- If more than one cable is attached, EasyTune asks you to Select a tool to connect. Each cable is listed with the VIN it can see.
If the ECU reports a VIN that isn't valid, EasyTune asks whether to rewrite it. It can't connect to the vehicle until the VIN is fixed.
- Accept the Invalid VIN prompt.
- With the key on and the engine off, enter the vehicle's VIN in VIN Rewrite. The rewrite fails if the engine is running.
- Follow the Power Cycle dialog: turn the vehicle off and remove the key, click Continue, wait for the countdown, then turn the vehicle back on and click Continue.
EasyTune then connects again. If you decline the rewrite, click Retry Connection when you're ready to try again.
Under the VIN, EasyTune shows the ECU's calibration IDs and its Bootrom, Last Flashed, Hardware ID, Engine ID, CVN, Flash Count, Dealer ID and Comment. Support and dealers may ask for these.
- Re-poll reads the ECU details again through the same cable.
- Reconnect starts the connection again from the beginning.
The first time you connect a vehicle, it is registered to your account and appears under My Vehicles. An account can register 3 vehicles by default. A vehicle that's already registered to you can reconnect as often as you like.
When you reach the limit, connecting a new vehicle fails with "Vehicle registration limit reached". You can't remove vehicles from your account yourself. To raise the limit, email support@easytune.com.au.
EasyTune supports ECUs by calibration ID. If yours isn't supported yet, the connection fails with Unsupported Firmware and shows the calibration ID.
To ask for support:
- Click Submit Unsupported Firmware.
- Fill in the Make, Model, Year and Engine, and anything else that might help, such as modifications.
- If you already have a read of this ECU, attach it under Original file (optional). Files can be up to 8 MB.
- Click Submit Request. Support replies to the email address on your account.
If opening Vehicle Connect shows Update Required, your version of EasyTune is too old to connect. Click Download update, then Restart to update. Flash Recovery still works while an update is pending.
When a connection fails, EasyTune shows the error and a Retry Connection button. Common errors:
- No devices found: EasyTune can't see a cable. Check the USB connection and that the cable's driver is installed, then click Refresh. If you use a cable other than a Tactrix OpenPort or EasyFlash, click Using a different cable? and pick its driver.
- "Another application is using the Cable": close any other software that uses the cable, then try again.
- "No response from ECU" or "No ECU answered": check that the ignition is on and the cable is firmly plugged in. If this follows an interrupted flash, use Flash Recovery.
- "The Cable firmware is out of date": update the EasyFlash with the EasyFlash app.
- "The Cable firmware is newer than this version of EasyTune supports": update EasyTune.
- "Unable to reach EasyTune": check your internet connection.
- "This ECU is not currently supported": EasyTune can't work with this ECU.
If EasyTune managed to read the ECU before the error, the error screen also has a Submit Support Request button. It asks for the vehicle's make, model, year and engine, then sends them to support with the error and the ECU details shown on screen. Otherwise, email support@easytune.com.au with the error message.