scenic dti (99) not running / starting

i have brought a non running 99 scenic dti, so no idea how the problem happened or have any history of the car.



there is no power to the glow plugs or the diesel pump.



the flashing immobiliser light goes off so i think this means it is working.



the glow plug light doesn't come on at all though.



i have removed and cleaned the earth at the from of the engine but made no difference.



i'm thinking wiring or possibly ecu.



i have checked all the fuses and they are all ok. i have checked for power at the inertia switch and have power in and out.



i haven't got a wiring diagram so am a bit stuffed. i'm thinking i need to look at testing the power at the engine relay and the ecu after that.



anyone know what relay is the engine relay? and what voltage i should have at what terminals?



i may also need help with pin data for the ecu if the relay checks out ok.



i have the the bosch 15.5 system (the glow plug has 9 terminals) that is used for the f9q 731 or f9q 736.



thanks for any help, very much appreciated.