Option 1: Query ECUīefore attempting to reprogram an ECU, first select 'Query ECU' to identify the ECU version fitted to the vehicle.
Please read the below section for more information on the differences between the two programming methods.
Enter Utility Mode: Most Subaru ECUs and Mitsubishi Diesel use this method. Query ECU: This is the most common method of programming the ECU, as shown in the above screenshot. ProECU has two different methods of programming the ECU depending on the vehicle: The ProECU Programming Tools window will only be displayed if ProECU successfully established a connection to the ECU: If the above steps do not resolve the connection problem, close ProECU, unplug the EcuTek vehicle interface and then plug it back, and then restart the software. The following message will be shown if ProECU can't establish communication with the ECU.įollow the instructions in the above message to try to establish a connection to the ECU. 
Choose 'Program Engine ECU' when the below window appears and press OK. Choose 'Detect Vehicle.' from the 'Tools' menu. Turn on the vehicles Ignition, DO NOT START the engine, just Ignition Lights ON. Ensure the OBD2 Vehicle Interface is connected. This is usually located on the lower section of the dashboard just above the drivers throttle pedal.Ĭonnect the other end of the EcuTek vehicle interface cable to a USB port on the laptop.įollow these steps to enter programming mode: Plug the EcuTek OBD2 vehicle interface cable into the vehicles diagnostic socket. 
To program a car's ECU the programming interface must be connected to the vehicles OBD2 socket: Such a device causes programming errors if it’s attached to the CAN bus while programming the ECU.ĭevices such as the delimiter are not normally needed when tuning with EcuTek ProECU, as speed delimiter and boost-cut delimiter settings can be modified using ProECU. Third-party devices such as the HKS Velocity Advanced Computer Type CM speed delimiter function by interfering with the CAN signal. Remove any devices that could interfere with the CAN signal.
Nearby industrial equipment, such as welders and high power fans. As an example of the seemingly unlikely problems you may encounter when reprogramming, it is not possible to program the Nissan GT-R if its interior heater blower is in operation… and the doors of the same manufacturer's Juke model must all be firmly shut before programming, or failure is almost guaranteed!įor devices that are not part of the car, this includes:
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