Hi all,

I’m currently working on a 2013 Civic 1.6 diesel 5 door hatch (UK spec). The car came to me as a non starter, it’d crank but no start, multiple check system error messages, immobiliser light flashing etc.

So, first port of call was to plug in my autel maxisys. This revealed non comms to multiple units and would only talk to ecm, immobiliser and srs modules with ecm and immobiliser showing faults related to f-can network errors.

So then checked all fuses, all ok but no voltage going into fuses 2 and 3 of the passenger side fuse box.

getting there...

I’ve pinched a temporary live from the aux socket circuit and fed it into those two fuses and all comms comes back and car starts and runs fine, great stuff!

My problem is that I cant find a wiring diagram for this car anywhere and really need to find out what supplies (or is supposed to supply) the live to those two fuses, Ideally i’d like to trace that back and find the actual fault as opposed to returning the car with a bypass bodge.

Does anybody on here know where this live comes from? Ecm or Bcm or relay?

Thanks in advance,
Chris