Good evening all
This is my first post in a few years, the golf has been pretty inactive during that time, but I'm now on a mission to get it into a good state
So the issue I'm trying to sort at the moment is the interior and door lights. The door lights have never worked since i've owned the car and the interior lights seem to have a mind of their own i.e. only working occasionally. At first I thought this may be a problem with the microswitches in the door lock modules, so I replaced one of them, but with no success. When I run a new temporary earth to the door light, it illuminates, so there is no issue with the supply line. I've cleaned up the earth points but that hasn't changed anything.
Looking at the wiring diagram, it shows a link into the 'Convenience Control Unit'. I am wondering if this could be faulty. I've tested the pins going into the CCU and it seems fine. Furthermore, when the interior lights aren't working, if I give the CCU a tap, the lights will sometimes work.
Has anyone else had issues of this description? Or would anyone be able to give me a little more insight into the operation of the CCU? I've ordered another CCU with a matching part number incase I have to replace it......
Any help would be greatly appriciated