Two faults that are relevant.
13DF00 Adblue system faulty.
20EB71 Power supply at input of combustion ECM is faulty.
Vehicle came in with a gearbox fault.
The vehicle has suffered water ingress under the carpet. I have cleaned the connector that was affected and now have all gears ok.
The vehicle was apparently showing the Adblue fault before the gearbox problem. I have checked all fuses except the ones by the battery as I haven't dug my way into them yet!
My problem is what is the "combustion ECM"? is that the engine or the Adblue ECM.
Struggling to find a way forward from here.