They will be if they have an m6 ring on the end.
The ecu will have somthing like four earths. They will be black with a trace colour. Usually three through the loom and a seperate one direct to the chassis.
There will be two switched lives. Green with a yellow trace. One permanent live and that will be red or orange.
The starter motor solenoid is switched via the start inhibit relay. It's an extra layer of Immobilizer with the pats.
The ecu earths the relay.
What's the pats light in he clock doing ?
I wouldn't have bothered with the full loom.