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KoukiMonsta
02-22-2013, 09:49 AM
I am essentially wiring my s13 from scratch. removing what is not needed, and re routing most all the wires, all for the sake of simplicity.

1990, sohc, automatic, no hud, hatch. for now i am only concerned with chassis wiring, though it will be sr powered.

lets start with the instrument cluster. no i can read the fsm for pinouts at the cluster rear. and the colors for each plug (3 of them in rear of cluster) are correct. then i follow the wires through the sub harness which leads to 2 more connectors.

these connectors can be seen in this thread http://zilvia.net/f/tech-talk/290700-s13-chassis-wiring-master-list.html

they are labeled as 11 and 12. they are connections to main harness m47 and m48

now the issue is that once in cross through the plug the wire colors change! what the hell is this shit. do all the chassis do this? how the heck am i supposed to follow this?

here are some photos of what i am talking about.

http://farm9.staticflickr.com/8513/8498385812_47e82733ca.jpg (http://www.flickr.com/photos/[email protected]/8498385812/)


cluster side, colors match up to fsm
http://farm9.staticflickr.com/8365/8498384138_731a9e7e78.jpg (http://www.flickr.com/photos/[email protected]/8498384138/)


main harness side look at color changes
http://farm9.staticflickr.com/8100/8498384556_b4c72d62a6.jpg (http://www.flickr.com/photos/[email protected]/8498384556/)


My next question, is this the F1 plug? because i dont see any other plug that could be it and this does not match a single wire color i am reading in the pinout.

http://farm9.staticflickr.com/8513/8498385492_c1822ab55d.jpg (http://www.flickr.com/photos/[email protected]/8498385492/)


http://farm9.staticflickr.com/8097/8498385210_e2e5594319.jpg (http://www.flickr.com/photos/[email protected]/8498385210/)


http://farm9.staticflickr.com/8088/8497281527_6c9bc51ae4.jpg (http://www.flickr.com/photos/[email protected]/8497281527/)

if anybody is well educated on this stuff id really appreciate some help. if i could talk to someone (via phone or what have you) this would be so much quicker. i just dont kno anybody personally who knows this stuff.

also can anybody point me to a pdf version of the "foldout" portion of the FSM? i do not have access to this section and believe it will be useful.

Thanks for any input!

Sir
02-22-2013, 10:01 AM
Instrument cluster is easy if you follow the FSM you will see the entire circuit from sender to the dummy lights along with any changes in the wire colors

oni jake
02-22-2013, 10:02 AM
Yes, all chassis have stupid wiring. You must trace the wire to and from its source for a positive identification.

You said you can read the pin outs, what does it matter if the colors are off?

KoukiMonsta
02-22-2013, 10:51 AM
Instrument cluster is easy if you follow the FSM you will see the entire circuit from sender to the dummy lights along with any changes in the wire colors

This I am not seeing. As for the fsm I am viewing its from 240edge dot com. I don't have a real physical manual and looking at the EL section from another online source doesn't seem to have what I need.

Now I know this is noobish, can you show methis diagram that includes color changes? Everything I look at continues the colors thought the plugs and does not indicate any change

Yes, all chassis have stupid wiring. You must trace the wire to and from its source for a positive identification.

You said you can read the pin outs, what does it matter if the colors are off?

Wire color makes for a good method to double check. But throw that plan out the window.

EvoVIII808
02-22-2013, 11:11 AM
I got my FSM from here. It shows everything you need.

240sx FSM, Full Service Manuals, S13, S14, KA24E, KA24DE : 240sx General Discussion (http://forums.nicoclub.com/240sx-fsm-full-service-manuals-s13-s14-ka24e-ka24de-t311075.html)

oni jake
02-22-2013, 11:25 AM
Wire color makes for a good method to double check. But throw that plan out the window.

Color differences happen at the factory when some low-wage worker on the line runs out of the wire specification and uses something different. I've personally never seen a S-chassis where 100% of the color codes match what's actually on the car. Double checking through colors is almost useless.

Since you're building your harness from scratch you, you could make everything color corrected yourself.

KoukiMonsta
02-22-2013, 12:17 PM
Color differences happen at the factory when some low-wage worker on the line runs out of the wire specification and uses something different. I've personally never seen a S-chassis where 100% of the color codes match what's actually on the car. Double checking through colors is almost useless.

Since you're building your harness from scratch you, you could make everything color corrected yourself.

ok, i had a feeling thats about how the wires were being chosen at some points, whatever is laying around. but the thing is its not just one or two wires. its every single one!

and yes i already have gotten to work on doing just that. making my own diagrams for the rear end already complete.

I got my FSM from here. It shows everything you need.

240sx FSM, Full Service Manuals, S13, S14, KA24E, KA24DE : 240sx General Discussion (http://forums.nicoclub.com/240sx-fsm-full-service-manuals-s13-s14-ka24e-ka24de-t311075.html)

i am still unable to find a diagram explaining any of the colors i am seeing that change through the plugs i previously mentioned.

Sir
02-24-2013, 04:01 PM
This I am not seeing. As for the fsm I am viewing its from 240edge dot com. I don't have a real physical manual and looking at the EL section from another online source doesn't seem to have what I need.

Now I know this is noobish, can you show methis diagram that includes color changes? Everything I look at continues the colors thought the plugs and does not indicate any change
.
Check el39 as that's where the instrument cluster wiring starts.


Sent from my Nexus 7 using Tapatalk 2

KoukiMonsta
02-25-2013, 12:45 PM
Check el39 as that's where the instrument cluster wiring starts.


Sent from my Nexus 7 using Tapatalk 2

ok so i have been referencing the SOHC fsm...which is not available in pdf form so it as been a bit tricky trying to navigate.

i am not sure in the exact differences of sohc vs dohc chassis harnesses...so thats another potential issue.

but i have essentially given up on wire colors, as listed in the fsm. i will keep my own notes as to what color goes where/means what.

thanks for the input guys, if only the damn colors matched!