1999 2.0 petrol Toyota Picnic RHD

I am fitting an alarm to my Toyota picnic at the moment. The guy I bought the alarm off gave me the wires to cut for the immobiliser, either the fuel pump or the ecu.
Fuel pump wire is on the other side of the car (left) but ecu wire was supposed to be next to the fuse box, but I can't find it anywhere.
Can anyone advise by PM what wire I should be looking for on that side for a RHD car.
Thanks