: Behind the plastic cover at the rear of the engine bay, passenger side (on most W204, W212, W166).
Ktag firmware version 7.020 (KSuite software version 2.23 or higher). Connection Cable: Ktag 14P600KT06 GPT color-coded cable.
A progress bar will show the reading status of both the and the EEPROM . Do not touch the cables or interrupt the power supply during this process. 4. Saving Your Files
It is essential to ensure that any modifications or data access procedures comply with local automotive regulations and environmental standards regarding vehicle emissions and safety.
Necessary for bypassing Tricore password protection. Stable Power Supply: 12V DC Adapter. Mercedes EDC17CP57 ECU: Removed from the vehicle. Soldering Equipment: Needed to solder wires to the PCB. KSuite Software. Step-by-Step Procedure 1. Setup and Software Selection Open KSuite. Select Cars . Select Mercedes . Select the model (e.g., W166) and the engine. Select Bosch EDC17CP57 TC1793 . Select the Plug-in 842 . 2. Opening the ECU and Wiring Remove the ECU from the car and open the cover. How to read Mercedes EDC17CP57 with Ktag 7.020 GPT cable
: Some Mercedes ECUs manufactured after 2021 may be locked and require advanced tools beyond Ktag 7.020. exact pinout diagram
Once all physical connections are verified, follow this precise sequence to execute the data read: 1. Powering the System
: K-Suite (version 2.23 or 2.25 is highly recommended for stable clone hardware).
Carefully remove the aluminum back cover of the ECU using a heat gun and plastic prying tools to soften the factory sealant. Avoid flexing the PCB. Locate the boot pads near the central processor chip. Solder a to the designated Boot Pad . : Behind the plastic cover at the rear
Here is a consolidated pinout diagram based on technical resources:
: A stable, external 12V adapter is required for the Ktag unit during bench operations. 2. Pinout & Connection Guide
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The tool provides a Full Backup (Micro + Flash + EEPROM), which is essential for cloning or recovery if a tuning attempt fails. Reading typically takes 2–5 minutes once the connection is established. Verdict For a cost-effective solution, the Ktag 7.020 remains the best "budget" tool for the Go to product viewer dialog for this item. A progress bar will show the reading status
: If the software fails to read the ID, double-check that the 12V power supply is stable and that the Boot and GPT connections are secure.
Once authenticated, KSuite will identify the microcontroller (typically an ).
This technical guide outlines the exact step-by-step process, wiring diagrams, and software configurations required to successfully complete this read operation. Hardware and Software Requirements
Before making physical connections, open your K-Suite software to identify the correct protocol: Select from the car list. Choose the specific model (e.g., W166 Sprinter or GLE). Look for the BOSCH EDC17CP57 IROM TC1793 entry.