Well I assume it's definitely an alarm signal?
You need to test the PIR and cable, resistance checks? Voltage checks ?
Position can also be a problem yes
Works all right tho if it's the stuff your selling
I lash the SW stuff in , never had an issue, flexible and does the job
Electrician seems to be some weird stuff that like spring that won't dress anywhere , like you open panel and it all jumps out , only way to keep it in place tie it and crease it
I am diying for a charity , so furloughed and allowed to do this