OBD2 fault code reader

Hello.
I am lost off about what code reader to get.
I thought that Jimnys were OBD2 16pin sockets ( Well they are )
So anyways I aint got a lot of cash to spend so I bought a Code reader, This one here from Ebay. ( This is the actual one I got )
Anyways, I plug it in and after a while of doing its checks it says "Link Failed" I tried loads and followed the instructions.
So I tried it in my mates 03 Vectra it said the same. Link Failed.
I tried it in my other mates Renault Espace and it read and worked.
NOW I am lost off....this is OBD2 and my Jimny is over 1996 and it don't seem to work.
What cheap reader will work on the Jimny ?
I have not got faults at this time but would like a code reader to hand just incase I do need to erase a code.
Any advice will be great.
Steve

Thanks for the reply.
Your info was right

SO Now I want a cable that will connect USB2 to a PC and fit a Jimny 1998 plug.
There is a few on Ebay but most says that they work on Petrol cars 2001 and above.
Can anyone tell me what cable I need ?

PS: I have software just need a cable.

Any help Thanks

The scan tool asvertised on eBay will not work on an OBD1 Suzuki, the early Jimnys use a Suzuki proprietary protocol, commonly referred to as SDL. Although they have an OBD2 (J1962) connector the diagnostic link is wired to pin 9 which the OBD2 specification reserves for the manufacturers own use. There are two scan tools that will work, the Tech 1 and the Carmen, unfortunately they cost several thousand pounds each. I have been developing software for Suzukis, this software uses a text format configuration file to allow it to be adapted for use with any SDL Suzuki, although it sometimes requires a little work to define the correct address for an ECU. I havealready done quite a lot of work with the 81A11 ECU fitted to some early Jimnys and many of the addresses are known.
I have recently produced hardware that is specifically designed to work with the Suzuki interface.

www.rhinopower.org/diag/sdl.html

So you can sell me one ?
I have left messages with you via your site.
I am sick of this stuff to be honest, I need something that works.
please see emails to sell the right product. or phone 07858560666.
I need something that works.
Steve

If your ECU is a 33920-81A11 then I can offer a PC interface that will work. I have 85% of the addresses (PIDs), I have been working on this with a guy in Portugal and by working through the software. If you are reasonably close to me then I will bring a tool to you and check it on your Jimny.
Cheers
James