Bosch MED17.5.2 User Manual

info@chiptuningshop.co.uk
Manual for using MED17.5.2 Bosch ECU probe with AVDI – Page 1.
1. Description: This probe can be used for programming VAG MED17.5.2 Bosch ECU`s. It fits in most BDM
positioning frames and is fitted with LED`s for accurate alignment on the ECU. The “Boot” resistors and the
ignition feed can be switched. With this adapter, there is no need to solder at all.
Adapter Overview
A = Serial port connection B = Power Switch ON/OFF
C = Power Jack D = DIP Switches for BOOT Resistors ON/OFF
E = Ignition selection switch:
ON/OFF/K-Line
Since the AVDI requires a permanent connection via a 510 Ohm resistor between the K-Line and 12V, This switch
has no function in the AVDI version of this probe.
SET TO “K-Line” POSITION AT ALL TIMES
F = Connect to flash tool. G = Connect to serial port on probe (A)

Bosch MED17.5.2 Specifications

General

Brand	Bosch
Model	MED17.5.2
Category	Control Unit
Language	English

Summary

MED17.5.2 ECU Probe Overview and Components

Adapter Overview and Component Labels

Identifies probe connections (A-G) and their functions, including power, serial, and flash tool interfaces.

Ignition Switch Mode for AVDI

Explains the ignition selection switch (E) and its specific setting for AVDI use (K-Line).

Handling, Adjustment, and Operation

Safe Probe Alignment and Connection

Details safe power-off procedures, probe placement, and ECU alignment for connection.

Reading ECU Password

Step-by-step guide for reading the ECU password, specifying switch positions.

ECU Programming via Boot Mode

Instructions for programming the ECU using boot mode, detailing switch settings.

Procedure for Safe Disconnection

Outlines the critical steps for safely disconnecting the probe from the ECU after use.

ECU Physical Connection Details

Identifying Critical ECU Contact Pads

Highlights the specific red-marked pads on the ECU that require contact with the probe.