fuse box

From my earlier post Now we are following the power to the instrument regulator which was wire G5-20DBL

The wire "going off" the previous page comes onto page 8-150 the top drawing is a crop of that page. Find the 4th wire down, that IS our G5-20DBL. Notice this goes over to the "diamond 3" at top left, then branches and goes down and to the right and off this page where it becomes J2B-12DBL

Now go to the bottom photo. This is where the above wire once again comes onto page 8-151 and goes to the ign switch. So find wire J2B-12DBL coming in from the left, third wire from the top, and you'll find it goes right to the ignition switch.

THIS MEANS that there is NO FUSE in that circuit. The power going to your instrument voltage limiter in the cluster is not fused.