OBDSTAR DC706 Failed to Read Volvo SID803 ECU on Bench Solution

Problem:

Volvo Sid803, OBDSTAR DC706 bench not connecting!!! Any tips?!
Need to Clone.

Solution:

Check voltage and connections.

Make sure they’re making good contact.

Need 2 GND connection.

Report:

SOLVED – Read full and clone ok. checksum correction by DC706.