Hello,

Don't know what the rules are about sharing things from other forums, but I found a really helpful guide on diagnosing and tracking down electrical problems.

http://thelatebay.com/index.php?threads/how-to-using-a-multimeter-and-testing-for-faults.4688/

Managed to figure out that the window switch wasn't sending correct volts, and thankfully wasn't the classic door loom wiring going awry.

Delete if this isn't allowed! Just thought others may find this useful.