arrived unannounced over weekend with rac non starter there diagnosis faulty ignition coil.

Turns out this vehicle was supplied to owner in Australia when he lived there and he in my opinion foolishly imported here, biggest problem is lack of info has anybody any idea where to get hold of things like wiring diagrams pin out positions and component locations and types.
up to now have only managed to enter OBD but no dtcs,but showing 200rpm on tacho when cranking. also batt volts supply side of coil but doesn't appear to be switching on either of other 2 terminals (tested with noid light, so don't think coil faulty.
no description in handbook of what fuses supply but all are showing ok.owner says he drove to Tesco came out started engine engaged reverse then cut out since then no start, wondered if an inertia7 switch anywhere but cant see one.

please can anyone help

Geoff taylor