I have both the USB port and Serial port connected to the box.
however I dont get the serial port to work. (USB works just well)
first.. I tryed to use rs232 TX, RX and Ground cable on the Serial port.
I get no connection to ECU.. tryed to switch TX,RX cables but no look
what do I exactly need to connect, and do I need to make any changes in the configuration of the ECU, in order to use the serial port?
G4 Communication port pin 5 (yellow) to rs232 db9 pin 3
G4 Comminucation port pin 6 (Grey) to rs232 db9 pin 2
G4 Communication port pin 1 (Brown) to rs232 db9 pin 5
(I use hardware serial rs232 on the computer.. no USB-Serial converter)
Â /Regards Nore