. This process allows you to bypass the TPROT (Tuning Protection) without necessarily opening the ECU for boot pins, depending on your software version. Required Equipment Ktag 7.020 (often the 14P600KT06 cable for Ktag). 12V/14V Power Supply (Stable source is critical). KSuite Software (Usually version 2.25 or later for compatibility). AliExpress Connection Pinout (Typical)

and select the model (e.g., ML 350 BlueTEC) or the specific ECU: Bosch EDC17CP57 IROM TC1793 GPT The software will suggest the correct protocol (often Plugin 700 or similar for EDC17 GPT). Step 2: Wiring & GPT Connections

Ensure the GPT 1 and GPT 2 wires are not swapped. These are polarity sensitive.

: Connect the Ktag GPT cable (14P600KT06) and the main cable ( 14P600KT02 Go to product viewer dialog for this item. ) to the ECU's external pins as follows: Red : +12V (Pins 3, 50, 88) Black : Ground (GND) Green : CAN Low White : CAN High Yellow : GPT1 Orange : GPT2

Open your K-Suite software and select the Mercedes model. Locate the EDC17CP57 entry. You will typically use Protocol 700 for this ECU when using the GPT method.

, which allows you to decrypt the secret password and read/write both Flash and EEPROM without removing the microprocessor. Preparation & Equipment Before starting, ensure you have the following: KTAG V7.020 Main Unit and the specialized (typically a multi-colored 14-pin cable).