ECU Software

[Gareth Pomford]

Just got some Cerbera ECU software , Now need a cable . Any ideas where to get one ? I would prefer to make one myself ,so a pin out of the cable would be great.

[malman]

I stand to be corrected but I think its the standard MBE cable. I have a copy at home which I found on the web but can't find again for some reason. I can mail a copy if you like?

[jet fixer]

the cable is a standard one that you can get from any pc world or maplins etc.

Dont be fooled by some people that say there are resistors in the genuine one its rubbish mine works fine 4.99 from maplins. Oh and make sure its long enough to get the laptop somewhere you can read it whilst your head is planted under the bonnet

[julian64]

Yep there are resistors in the genuine one, and I would be careful otherwise if I were you. The RS232 pinout on the ECU is def not standard. The Tx and Rx are in the right place but there is other information coming out the port like engine fans etc. If you bought an RS232 lead you take your life in your hands as to how many earths are in the lead. You don't want to be shorting 12V to earth through the port. If you don't believe me turn your ignition on and then look across the 'meant to be' passive port.

If you got the software where I think you did, the CD it came on contains a picture file which shows you the exact wiring diagram.

I'm afraid I'm pants at posting pictures but will if anyone wants to post it for me.

[joospeed]

nah it's just a serial lead, pin to pin i use an extension lead from pc world .. no probs at all .. the resistered lead is for mapping to tell the ecu it's got the mapping lead on .. for the diags a std lead is just fine ..

[alans]

joospeed said:

nah it's just a serial lead, pin to pin i use an extension lead from pc world .. no probs at all .. the resistered lead is for mapping to tell the ecu it's got the mapping lead on .. for the diags a std lead is just fine ..

Standard RS232 lead it is.
Alan

[malman]

Found the one I was looking for - any opinions / comments on this one?

www.sbdev.co.uk/Engine_Management_Systems/ECU/Mapping_Lead_Picture.gif

Disclaimer
Info provided as found on the net - public domain - if you blow your car up its not my fault

>> Edited by malman on Saturday 9th October 11:48

[julian64]

Yep thats the one. There is no connection between the other connected leads and the CPU so I doubt its a lead designed to signal its presence to the CPU.

When I first connected a standard RS232 lead to mine my engine fan came on at the same time as blowing the buffer on the RS232 port on my laptop.

However my RS232 lead had the other wires ground to earth. A LOT OF SHOP BOUGHT RS232 leads have this. You may be lucky but is it really worth it for the few pence it takes to make the suggested one?

Don't say I didn't warn you

[malman]

If I had the software I know which one I'd be using

[Gareth Pomford]

forgive me for being stupid but where do i plug this lead into the ecu ? Had a look last night however there was no 9 way connector on the ECU ? do i have to remove the big main connector ?

[trooper1212]

Gareth Pomford said:

forgive me for being stupid but where do i plug this lead into the ecu ? Had a look last night however there was no 9 way connector on the ECU ? do i have to remove the big main connector ?

Take the lid off the ecu box, there is a serial connection inside.

[siciliani]

any ideas where i could purchase the ecu diagnostic software as i am a new owner of a cerbera and require reseting the adaptive values!!

any help guys!!

cheers

[whatever]

siciliani said:

any ideas where i could purchase the ecu diagnostic software as i am a new owner of a cerbera and require reseting the adaptive values!! any help guys!! cheers

I'm sure your local dealer could easily help with this, if that's all you need to do.

[Julian64]

Nah, you live in essex. I know for certs that the essex mob have lifted the software from us Kenters.

Just turn up at a meet and buy someone a pint