Continuity problem

[Vulcan]

DISCLAIMER: I know very little about wiring

This is on a 2000 Ranger 3.0 flexfuel

Four questions (maybe)

1. Should I be able to get continuity between the "A" terminal (a yellow and white wire) and the battery? How about between the terminal and where the 30amp alternator fuse plugs in on the in-engine compartment fuse box?

If so...

2. There is a black box (not sure what to call it) on top of my intake manifold near the firewall that looks like you can disconnect the wiring harness at that point from the other half. Now, I know that none of you have ever done this, but sometimes in my zeal to fix something I end up breaking it instead. Not sure how to proceed on this so how do you disconnect it? I unscrewed the bolt on the back but all the catches on the sides look like they want to break before the come on done.

3. Like the previous question, how do I open my in-engine compartment fusebox without breaking it?

4. I ask all this because it does not appear to be a alternator, battery or cable problem so I am guessing that it is lack of power to the voltage regulator. Any better ideas?

 

[Vulcan]

Just realized I posted this in the wrong part of the forum. I need a mulligan.

 

[Gary101386]

should be a tab on the front you push in towards the fuse box and the cover will flip up or pull off.

what is it you are trying to troubleshoot or fix?

 

[armadillon]

This ^^^ I appreciate your detail (and disclaimer!), but we aren't sure what you're really asking about.

 

[Vulcan]

My alternator wasn't charging the battery. I took the alternator off and it wouldn't test. Usually a bad sign. Replaced it same problem. Checked for continuity. None out of the a terminal that goes into the voltage regulator. Went to the engine compartment fuse box.
I thought I had correctly identified the correct fuse, number 14 in my manual, and was not getting continuity where it plugged in to. So I was ready to plunge deeper and crack open the fuse box to get to the wiring, see if something had happened in the fuse box or along the wire itself.
So I was standing there over the fuse box not sure of what to do next. Dumbfounded, I started checking all the fuses to make sure they were all right. Thats when I found the correct fuse, the other number 14 in the manual, which was broken. The 14 I was picking on was a relay. Yeah, I know.
Anyway, problem solved.