possible becm failure?

ok customer of mine in scotland has a p38a m reg he has lost coms with his engine ecu with his msv fault mate and has phoned me for help?
now he has tried to reconfig the imobiliser code which has failed and the car does not start sound becm failure is there anything else i can offer him to try?
he has tried the key in ignition and reconect battery but it will not start!
obiously me in leicester him in scotland little hard for me to try anything will be going up in 2 weeks but need to try anything else any ideas thanks

try turning off the immobiliser in the BECM using SM022 on his faultmate

If the Faultmate has lost comms with the engine ECU, does it still talk to the BECM? First place I'd look is the OBD connector for corrosion.

OBD2 is fine checked this last time i went to the vehicle last month.
he can talk to the becm and has tried to the imobiliser relearn but this has failed too any other hints cheers

Bit extreme,but you could get him to post the BECM,engine ecu and a key down to you - fit them in a slave car,code them up and post them back.
I did this for a customer in Cuba.

vougese39 said:

OBD2 is fine checked this last time i went to the vehicle last month.
he can talk to the becm and has tried to the imobiliser relearn but this has failed too any other hints cheers

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Is it a petrol or diesel?

If its diesel you can just turn off the immobiliser (and the alarm too if it is still a problem) in the BECM and thats it out of the equation. Worked fine for me for the last 6 months when the fob code when corrupt (All sorted now thanks to BBS and Irishrover )