[Engine] Crank not start

[petrica_velvet]

Hi to all ,
I have a berlingo 1.6hdi b9, 2017, 68900km and I have the following problem, I start the engine, it rotate but does not start, after checks the low pressure pump does not supply diesel so I replaced it with a new one and that's it don't put in the diesel, with the diagnosis it doesn't give any error code except pressure lack of low pressure circuit

Can anybody have a clue

Thanks

[petrica_velvet]

Update, after diag box scan have error P2635 00 &U1218 81

[Sol]

What did Diagbox say those codes mean? Diagbox gives an exact fault, not just a code.

I ask, as I can't find those codes at all on the official list. 

P codes are engine faults and U codes are communication faults.

[petrica_velvet]

P2635 Pompe basse pression carburant
U1218 81Défaut de communication avec le boitier de servitude intelligent

,,ask, as I can't find those codes at all on the official list." yes I know, I also searched in the "haynes pro" database and I have no reference