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so anything that lights up on +ve is power? so just hook it up to +ve and run with it?
There is no need to connect them up to anything. If a wire has +ve with the key off - it is a constant power supply. If the key is at ACC - it is an ACC +ve supply. If the key is at ON - it is an IGN +ve supply ( IGN as in ON not ignition pulse)
Also make sure that the +ve supply isnt a result of a heater, wiper etc switch being in the on position. Naturally if it is, it means that's what the wire is for.
You can check for earth like this too, by changing heater, wiper etc switch positions.
( But if a wire at any point has +ve it will not be a -ve wire even if it lights up as being one)
To see if a wire is for a dash warning light/guage, put the test light clip on earth and test the wire. If the guage goes up - thats the wire for that guage. If the dash warning light glows a little - thats the wire for that light.
Transfer
