One customer gave feedback that his KT200 can’t read Volvo Penta EDC7UC31.
Reason:
K-Line is not connected.
PINOUT:
PIN B2&B40 – +12V
PIN B6 – GND
PIN B89 – KLINE
PIN C9 with D48CONN04
PIN C23 with D48CONN04
Then select
BENCH MODE
[brand]
MPC561 – [brand]
EDC7 UC31
to read/ write ECU
Done! Nice and simple.