[ttagget]

Ok 2004 tundra, new battery , new alternator still not charging .
Checked all the fuses,, on checking the connector to the alternator I found:
+ 12V on L and S,, the way I read it there should be +12V on IG but there isn't (even when running).
So this would indicate either a blown gauge fuse (which there isn't ) or a broken wire somewhere.
The diagram I pulled off this site is that there is a J1 connector: Any ideas where it is?

 

[spazstic]

You didn't say if this is a V6/V8 or Std-Access Cab/Double cab. That helps.

The J1 connector is at the engine fuse panel. Look at the right of the attached image.