My bro has a problem with his 406 not starting some times

its the 2.0 GLX on an R plate.

"Car turns over fails to start.
15pin multi-relay by the ecu buzzes upon a failed start.
Fuel pump only starts once the ignition/injection warning light comes on - often it'll start when this happens.
No ecu fault codes found (2 garages).
I think it's the immob pick-up coil or the immob its self that faulty.... See more
sometimes it'll just cut out for a second when driving down the road."

any ideas?