I have a 2015 ford transit custom 2.2L its a none starter. After multiple different people looking at it and a new BCM and ECU all coded correctly to the van but the issue still persists.
Today I have managed to get the van started with the help of a mechanic. The only way it will start is if we put a 12V supply onto pin 2 of relay R18 which when I look online is the High-speed cooing fan(is this information correct?) When the power is applied all the faults on the dash dissapear and the van starts no bother at all, as soon as the supply is removed the van cuts out.
All error codes point to no comms with the PCM and BCM.
Can anybody shed any light on this issue for me?
See picture of 12v supply which allows me to start the van.