Hi All,

Trying to chase a wiring diagram for the F100 CPU2 (and whatever is associated with it on the same box) for my super early 93/92 FD model. Its a JDM import AT Type X model.

Every single dang diagram I found has the 20 Pin connector, the closest I could find was on a thread about the Euro version of the CPU, which had the same main connector but a different pinout with 4 wires unpinned in the connector, not 2 like mine does.
I even downloaded the 3600-page PDF from the forums with "all RHD Japanese manuals", but either I am absolutely blind or even the earliest revision they have on there is still not mine.

Does anyone have any idea where the wiring diagram could be found? Cos it is very different in Pinout, part number, PCB shape, etc., to all the others I have seen, save for the euro version, which has a different pinout to begin with.

I am trying to chase up the functions that go into it for some troubleshooting and at home wiring, and it is successfully driving me up the wall.

Closest I could find was the WD4003 diagrams in terms of "this should be right" (around page but I have no clue what I am looking at if I am to be completely honest.

I wrote down the pinouts for my connectors going into the CPU2 on my car:
Top row starting from the left and going to the right looking into the back of the connector female side (body loom side)
1. empty
2. orange
3. brown/black
4. red
5. brown
6. black/white
7. blue/red
8. yellow
Bottom row
9. empty
10. brown/blue
11. red/black or brown/black cant tell
12. white
13. black
14. blue/white
15. green/yellow
16. light green
17 grey/red

Connector 2.
Vertical pin near the clip: White/blue
horizontal pin: Black/red

Connector 3 for seperate board in box (same read order as connector 1):
1. Orange
2. yellow
3. green/white
bottom row:
4. dark green?
5. brown/black
6. green (light green maybe?)
7. black


What I assume to be the JDM diagram for my CPU2 from the WD4003 diagrams.

My CPU2 board with a 17 pin male connector (15 populated) and a 2 pin male connector up top.

What I believe to be either CPU1 or the DRL unit? (unsure as I am referencing other diagrams) The car does not have DRLs, though to the best of my knowledge, as that was a Canada thing, no?

Two connectors for my CPU2

My CPU1 connector.