2025/05/21

OBDSTAR DC706 Failed to Read VW ME17.5 ECU Solution

Problem:

Failed to read VW Bosch ME17.5 ECM with OBDSTAR DC706. I can only read the VIN number, but I can't connect to read the flash and EPROM. I used a 120-ohm resistor with 14 volts.

OBDSTAR DC706 Failed to Read VW ME17.5 ECU 1

OBDSTAR DC706 Failed to Read VW ME17.5 ECU 2

OBDSTAR DC706 Failed to Read VW ME17.5 ECU 3

OBDSTAR DC706 Failed to Read VW ME17.5 ECU 4

Solution:

There are 3 versions of pinouts for this ECU. Use the 3rd pinout. 

PIN 87 should preferably be a 12v one, not the ignition that it marks.

Use this pinout.

OBDSTAR DC706 Failed to Read VW ME17.5 ECU 5

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