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

[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

[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

[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

[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