I'm Gary, i've got a 2014 c4 grand picasso which has been fantastic for the last three years until recently so i'm hoping some of you clever people can help me.
I have the parking brake fault coming up and the parking brake won't engage, after reading up on it i was leaning towards a broken wire so i bought a lexia to try get a fault code. Only problem is on the global test when it gets to ABS/ESP it says no communication but reads the rest of the car with no problem. Has anyone else had this problem?
I went to citroen today and asked if they could give or sell me a schematic of the parking brake system, unfortunately they won't.
so does anyone have access to a schematic? and also the location of the ABS/ECU module because my dad is going to help me check for any open circuit's.
Any help is greatly appreciated, i have tried to do as much research as possible so i don't have to ask a question that has already been asked a thousand times but here i am

Thanks in advance. Gary