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Serial (DB9) to OBD2

Posted: Tue Jan 08, 2019 12:47 am
by chimchim0217
I've now tried 2 OHP WiFi adapters on my '14 F150 and on the iOS app and on FORScan running on Windows 10 I get the error "No ELM Connected". My Windows machine does still have a native serial connection on it so I'm curious if anyone uses a simple serial to OBDII cable? I'd assume to change between HS and MS CAN I'd simply change the Baud rate from 500 kbps to 125 kbps? Any feedback would be much appreciated.

Re: Serial (DB9) to OBD2

Posted: Sun Jan 13, 2019 8:48 pm
by Andyfocus

Re: Serial (DB9) to OBD2

Posted: Wed Jan 16, 2019 6:41 am
by ThatOneDude
If I understand correctly, the ELM327 chip does some translating, so the application would not work directly over a serial connection from the OBDII port to your computer.