This guide will walk you through how to use the OBDSTAR DC706 ECU Tool to perform data reading/writing and idle speed repair on a Hyundai Bosch ME17.9.21.1 ECU.
Tools Required:
OBDSTAR DC706 (X300 Classic G3 is also supported)
High-power DC regulated power supply
Main cable
ECU Clone Jumper
MP001 Programmer
Hyundai ME17.9.21.1 ECU
Step-by-Step Instructions:
1. Preparation
Before proceeding, ensure that the software is upgraded to the latest version.
Launch the [ECU Flasher] software and select Passenger Car [ECM].
2. Model Search
Use the search box in the upper right corner to quickly locate the corresponding ECU model.
3. Review the Guide
Open the [Guide] section and carefully read through:
Warm reminders
Function descriptions
Operation instructions
Connection methods
4. Connector Pinout
Open the [Connector Pinout] section and connect the hardware according to the provided diagrams.
5. Start the Process
After completing the physical connection, tap [Start].
6. ECU Connection and Data Backup
Establish a connection to the ECU.
Perform a full data backup immediately.
File names can be customized for easy identification.
7. Data Writing
Write the previously backed-up data back into the ECU module.
8. Idle Speed Repair
Tap on [Idle Speed Repair].
Once the operation is completed, reinstall the ECU module into the vehicle.
After repair, the normal idle speed will be stabilized between 800–850 RPM.
By following these steps carefully, you can ensure that the Hyundai ME17.9.21.1 ECU is properly repaired and operating at optimal idle speed.
Video guides:
