It's Thanksgiving. I generally come across the internet like a complete a$$hole as my wife so aptly reminded me this moring. So my apologies.... I've eaten a couple of edibles and my blood pressure has lowered a bit.
Here is some critical information in identifying and understanding parts and the assemblies you are dealing with.
Print them out and read them all; In fact, print them out, read them, then take them out to your truck with the hood up and identify everything in comparison to the documentation. There are some slight/subtle differences between the years and the truck, but in general, most North American market FZJ80 trucks are all pretty much quite similar.
These documents below are both pictorial and diagrammatic as well as normal textual descriptions. They are the Cliff's Notes of your truck.
Hope these help.
Cooling system routing and logic:
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1995 New Car Feature (NCF) file on the 1FZ-FE engine logic and control systems with explanations of what each component system does: ATTACHMENT #1 .PDF
Engine Control Logic (1FZ-FE): ATTACHMENT #2 .PDF
80 SERIES ELECTRICAL COMPONENT SYSTEM AND DIAGRAMMATIC: ATTACHMENT #3 .PDF
FZ ENGINE FAMILY CROSS-SECTIONS:
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