The wipers not working correctly, they sometimes stop mid screen, may also hesitate a few times across one sweep or not work at all.
Secondly the interior light coming on while driving and changing intensity.
Fault had been intermittent for some time.

While driving the interior light can come on mainly if headlights on? The interior light starts to dime and goes to full bright continuously.
Wipers come and go whenever they feel like it.