UK Auto Repair Questions?
First the car needs a scan for codes with a TECH2.
I have fixed many roof issues with Astra.
Could be broken wiring in the LH boot hinge assembly area.
Or parcel shelf flaps, luggage blind not fitted, boot switch short circuit.
The ABS fault could be a front wheel speed sensor.
So we need the codes for further diagnosis.
Do you need any further help?
I hope my advice has been of assistance to you.