Pip,
Try probing into a wire w/ multimeter
Try grounding your multimeter w/o a ground clip, and w/o using 2 hands.
Try reading your multimeter under a dash or anywhere light is minimal.
My post was for those that don't know how to use a meter, much less those that don't have anything at all. 12v test lights are,....and always will be a basic tool that is still used more for basic circuit testing,...connecting trailers, blown fuses, etc etc, than any other testing tool.
But then, if you are here just to be argumentive of other posts, then so be it !
[quote author=437A63597C7D7660130 link=1274757331/0#5 date=1274794064]
Routy wrote on 05/25/10 at 05:30:59:Routy wrote on 05/24/10 at 21:24:14:Armed w/ a 12v test lite, check if there is juice there, if not, it has to be a connection or the bulb.
-----------------------------------------------------------------------------
An inexpensive little multimeter will do it all too, but is more difficult to use.
But the multimeter will tell you exactly what you are looking for. a test light will illuminate. However testlights can be misleading... you will see the light illuminate with LOW or HI voltage, not just @ 12v. also, multimeters can tell you AMPS which in some cases is MUCH more important than the actual voltage, and Ohms which I use almost on a daily basis for broken wires and what not.
Multimeters take a little getting used to, but if you take the time to learn what ur doin.... you'll be FAR better off than using a test light.