Diagbox

[spiker]

Hi,
I got a full chip diagbox clone and for some reason its not detecting half the modules.

Citroen C4 Grand Picasso 2017

It will automatically detect the VIN

However when doing a fault scan:
Most say: 'No dialogue' (including Engine Management ECU)
A few say: 'ECU not recognised'
One seems to work: 'Voltage maintaining device'

PSA Interface Checher shows: 4.3.7
And reference: 921815 C

I have tried with DIagbox 9.85 and 9.68 and both behave the same.

I also tested the port with a cheap OBDII reader and this works, shows rev meter etc.

Any idea what could be wrong?

[CitroJim]

Hi and welcome to the forum

I had exactly this a few weeks back on a late C4GP.

I resolved it by telling/lying to Diagbox it was a C4 SpaceTourer and all was then happy

Try it