Mk6 rear doors short circuit

[gavcarter]

Trying to get factory alarm back up and running it it won't arm because of code b2422 rear cargo doors open.
The van will lock and deadlock and the doors do lock you can't open but csm keeps saying there is an open circuit. Any ideas where to start digging?

[Altransit]

The loom, where it runs from the body to the rear door, is a good place to look for defective wiring

Could be broken internally from the constant flexing