yes, headlights, parking lights, turn signals, courtesy and all dash lights work.

 

"IGN A" fuse in the underhood fuse panel, is a large orange, 40 amp fuse, Both terminals on top of it must have battery voltage at all times, (key on or off). Post your results.

 

no voltage at the fuse.
Visual inspection and ohm meter show that fuse is good.

 

See post #12.
Also, does the starter engage when you try to start the engine?
Does the engine start and run?

 

The engine starts and runs fine.
The heater fan works, the horn works, the windshield wipers work, the emergency flashers work, the radio works.

 

The "IGN A" fuse in the underhood fuse panel, is a large orange, 40 amp fuse, Both terminals on top of it must have battery voltage at all times, (key on or off). Don't remove the fuse to test it. Post your results.

 

no voltage at the fuse.
Visual inspection and ohm meter show that fuse is good.

 

How exactly did you check voltage at the IGN A fuse?

 

With a volt meter, with the key both in the on position and in the off position.

I don't have access to a wiring diagram. Where does this under-hood fuse box gets it power from?

 

Reason I ask, is because if it starts and runs, the IGN A 40 amp fuse does in fact have voltage on both sides. If you're not showing voltage on both side of the fuse, there's either something wrong with the meter, or the method you're using to check for voltage. Black probe goes to battery negative, red probe to the fuse terminals.

If the engine starts and runs, the underhood fuse panel is getting voltage. The main feed for the underhood fuse panel comes from a 175 amp Maxi fuse under the battery. There is a red cable attached to a stud on the fuse panel, it comes from the Maxi fuse. Must show battery voltage at all times, which yours does, guaranteed.