[Laird Scooby]

Originally Posted by martin calva

Here's an example of one of the to-be-avoided-at-all-costs "adapters" which has direct electrical connections from the OBD2 connector to the RS-232 connector,

OBD2 16-Pin to DB9 9-pin Serial Port RS232 OBD 2 Adapter Cable Car Diag HNL

On the other hand, correctly working adapters can be bought cheaply on Ebay, particularly from Chinese suppliers. I bought two or three for prices in the range £10 - £20, at least one including VOL-FCR software.

Here is one from a British supplier, for just under £20, that states it works with VOL-FCR, so is probably ok.

KKL COM-port RS232 Serial DB9 Diagnostic cable with FT232RL OBD OBD1 OBD2

What Dave says about using an old outdated laptop makes sense:

1. It will have an RS-232 serial port
2. To run VOL-FCR does not need up-to-date version of Windows
3. Minimal computing power is needed
4. In the unlikely event of something nasty happening to the computer, the loss will be small

A keyword seems to be "KKL" but I have not managed to find out what that means, except for a cryptic mention somewhere that KKL means "double K-line".

Are the words "full duplex transmission (or communication)" used in conjunction with the "KK Line" references Martin?