How to find current fuse? thought you'd found that? If its the correct one there won't be another.
It is suprising what you can find out on the internet.
type in your search engine box the following how do circuit relays work then look for ehow.com and click on that and it will tell all. Then after that electrical science information go back then search again on how to test circuit relays then search the list for ehow how to test car relay. That's a bit of auto electrician testing. You could then do 'Part time as a mobile relay tester' heh! heh!
As for the tester get one from car shop of course but get the all metal one with capped spike if you can I have both the plastic type and metal and use the metal one most. The idea of the spike is to peirce the live with clip used to pick up good earth point. That way it's all tested in situ.
bob
June 2012
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix caravans/motorhomes.