One customer asked how to read Mercedes BOSCH ME2.1 using Alientech KESS3.
Here are three ways to read this ECU:
1) By linking together Pin 1 and Pin 16 (+12V) on the OBD connector of the vehicle;
2)By using the Universal Cable 144300K201 when there is a round diagnostic connector;
3)By linking Pin 4 (+12V) to Pin 3 directly on ECU connector, as shown in picture:
Done! Hope this could help!
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