VAG COM not working

[mayfair86]

Hi all,

I recently upgraded from an ELM327 to a VAG Com cable, it was from ebay so im not expecting miracles but im expecting it to at least work! it installs ok, but whenever I test the 4 com ports it just says port not open and Interface not found.

Any idea why this might be?

Many thanks

Josh

 

[Slimy]

Check what port the lead has been installed on, it is very rarely given a port below 4 by default. I always have to move the com port after I plug the lead in.

 

[mayfair86]

cheers, ill give it a go over the weekend if i get chance.

 

[mayfair86]

unfortunately it didnt work, it now says port status ok but when plugged into the car it still says no interface? any ideas, the LED is on and when i do an LED test on the port it comes back ok. Really need to get this working to try and figure out whats wrong with my mums car! any help would be much appreciated
Cheers
Josh

 

[Slimy]

First obvious question, is the ignition on? Secondly, what car are you plugging it into?

 

[mayfair86]

yeah, the engine is on, im trying it on a 2001 (Y) Toledo and on a 2001 (51) 1.4 Polo Auto

 

[Slimy]

Well, it should definitely work on the Toledo 'cos mine does!! And the Polo is old enough as well.

I take it the ELM device has worked on both cars?

I could have sworn that 'interface not found' meant that the lead was connected but it wasn't being powered by the car. At some point I might actually go through the error messages and write down when they appear.

 

[mayfair86]

yeah ive had the ELM connected to the Polo before with no problems, I will try again on a different laptop maybe.

 

[BeartheBruce]

I could have sworn that 'interface not found' meant that the lead was connected but it wasn't being powered by the car.

That error can also mean that the driver is not installed properly. That would be my guess here. The driver install is the problem. The port status being ok does not clearly indicate that the USB/Serial drivers are working properly. My guess is the drivers are not completely compatible with the hardware.

What's the eBay vendor saying?

 

[gdjohny]

make sure that you have chosen the right port in VAGCOM and it should work.
with polo if its 1.4 engine you might set the cable speed lower. I had that problem few times with cars with that engine