Tuscan Diagnostic Cable?

[Rotaryboy]

Can Anyone tell me the pin outs for the 3 pin TVR connector to D-sub connector so I can make a diagnostic lead for my Tuscan? I know you can buy these but I'd quite like to make up my own.....

Any help appreciated.....

Tim

[Basil Brush]

Have a look through this:

http://www.pistonheads.co.uk/gassing/topic.asp?h=0...

[Rotaryboy]

Thanks for the pointer BB but typically it appears on investigation I have the 2 pin diagnostic lead. Does this mean that I can't use it for a serial connection lead? It also seems that there is a D-sub connector inside the ECU, there are diagrams for a lead from MBE but will this work with the TVR software?

Still head scratching......

Tim

[glow worm]

The 3 pins are Transmit,Receive and Ground...Maybe able to get away without ground,so I assume the two pins will be Tx and Rx, so connect to Pins 2 and 3 (which way round by trial and error should be 1-2,2-3) on a 9 way serial connector and leave Pin 5 gound...and good luck

[Basil Brush]

What year is your car?

[Rotaryboy]

Thanks for the suggestions, it seems that the 2 pin lead is connected to ground(0v) and pin 14 of the ECU connector (working from the ECU diagram on mytuscan downloads) this suggests that I can't just assume it is the TX and RX wires.
I'm now making up a lead as shown on the sbdev website for the MBE ecu. So I can connect directly to the sub D connector inside the ecu (if I can open up the box successfully!)
The car is from 2000 (although first registered 1st jan 2001) It's a Red Rose spec.....hence the Red Rose written in marker pen on the blue MBE ecu box....

Wish me luck..

Tim

[glow worm]

Why not talk to the people that serviced the car,they must/should have connected the diagnostic s/w...There must be some stamps in the service book ??

[Rotaryboy]

glow worm said:

Why not talk to the people that serviced the car,they must/should have connected the diagnostic s/w...There must be some stamps in the service book ??

Good point........but I'm an engineer, I didn't buy the car just to drive it, I have to get under the skin too....

I've only had the car a month and I have had plenty of opertunity so far

Tim

[Basil Brush]

I'm suprised it hasn't got a 3 pin lead connected, being a 2000/01 car?? I thought they all did back then. Have you followed the wiring from the ecu?

[Rotaryboy]

Basil Brush said:

I'm suprised it hasn't got a 3 pin lead connected, being a 2000/01 car?? I thought they all did back then. Have you followed the wiring from the ecu?

That's why I originally expected a 3 pin but I traced it back to the ECU and it only has 2, no rhyme or reason to TVR electrics.....I'll keep on this one but the urgency is reduced now as I traced the EFI fault to a dodgy sensor connector...

Tim

[Avalanche]

could someone take a look and confirm this is the place to download the diagnostic software for a tuscan please:

http://www.thetvrsite.com/ecu-diagnostic-software

many thanks!

[NCE 61]

Avalanche said:

could someone take a look and confirm this is the place to download the diagnostic software for a tuscan please:

http://www.thetvrsite.com/ecu-diagnostic-software

many thanks!

I use the 'New Diagnostic Software' (yellow car background) don't think the old version is for the Speed 6.

[Avalanche]

thanks NCE, downloading!!

[Avalanche]

connected 3pin cable with USB connector to my laptop, opening software I'm getting error message Unable to open serial port warning and the yellow car says the ECU is not connected.... Help please..? Will get a male/female laptop-end converter instead of the converter to USB tomorrow and see if that helps...

Edited by Avalanche on Wednesday 22 September 18:28

[T350 Al]

Just a thought; did you disable the immobiliser before trying to connect?

If that doesn't work, make sure the cable is using COM port 1

[Avalanche]

thanks T350 - how do u do that?

[fat80b]

Avalanche said:

connected 3pin cable with USB connector to my laptop, opening software I'm getting error message Unable to open serial port warning and the yellow car says the ECU is not connected.... Help please..? Will get a male/female laptop-end converter instead of the converter to USB tomorrow and see if that helps...

Edited by Avalanche on Wednesday 22 September 18:28

I seem to remember that you need the engine running to get a connection which foxed me for a while.

In terms of cable, I made my own from an old serial cable and a couple of pin headers.

Bob

[T350 Al]

Avalanche said:

thanks T350 - how do u do that?

You need to go to Control Panel (assuming you're using Windows), then System, then click on the Hardware tab, then click Device Manager. With the USB to Serial adaptor plugged into your computer, find the device under USB devices, right click on it and select properties. There should be an option somewhere to select which COM port it uses.

[Avalanche]

grrrrr..... still not working

got the engine running, so immobilizer's clearly off. Launch and still have same error mesage.

Checked the Location like u said, it is Port_#0001.Hub_#0007. So that looks correct, right?

The only thing is it says:

This device is not configured correctly. (Code 1)

There is no driver selected for the device information set or element.


To reinstall the drivers for this device, click Reinstall Driver.

So I click on that and point it to Downloads/diagnostic-new (include subfolders), hit next but it says windows could not find driver software for your device...

Also the yellow car window says there's no configuration
So, am I installing the software correctly..? I unzip all files by clicking on ECUDIAGS, and i have been launching the application with it too, that's correct?
Help...........and many thanks for your time!

Edited by Avalanche on Thursday 23 September 18:56

[erwin01]

hi avalanche,

Had the same problem,

Follow the steps from T350 AL, then go to advanced setting. Here you can select com 1 and you have to set the recieve and send buffer from high to low.

Then every thing works, reconnect to ECU.

Succes