Namerow Posted February 20, 2015 Share #13 Posted February 20, 2015 'Passing Relay' sounds like it's related to the 'kickdown switch' for an automatic transmission. Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463949 Share on other sites More sharing options...
EuroDat Posted February 20, 2015 Author Share #14 Posted February 20, 2015 'Passing Relay' sounds like it's related to the 'kickdown switch' for an automatic transmission.I think its something to do with the high beam headlights you use when passing or flashing another car. If you trace the wiring it runs through the combination switch and goes to the headlights. Its not on all the wiring diagrams you see on all the websites. Thats why Im asking about it.Did the early 240Z have the flash headlight function by pulling the comb.switch towards the steering wheel or am I missing something?You can see it in the "Colorwiring240zConcept " top left corner next to the engine bay inspection light.Chas Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463950 Share on other sites More sharing options...
grannyknot Posted February 20, 2015 Share #15 Posted February 20, 2015 Chas, early Z's certainly had the the flash to pass on the signals stalk, but I can't comment on the relay. Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463953 Share on other sites More sharing options...
tamo3 Posted February 20, 2015 Share #16 Posted February 20, 2015 Nice work!I'm also doing '75 280z color wiring diagram too. working in progress...75_280z_wiring_color.pdf Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463954 Share on other sites More sharing options...
EuroDat Posted February 20, 2015 Author Share #17 Posted February 20, 2015 Nice work! I'm also doing '75 280z color wiring diagram too. working in progress. Hi Timo, What software are you using to trace. I started tracing, but found it was not so neat as I wanted. Ended up using the original as a tamplate in AutoCAD. With EndSnap, Grid and Polylines its easy to connect the parts and everything stays neat and tidy. I know DraftSight from Dassault systems works very similar to AutoCAD, but its lousy in Paperspace. NanoCAD works good in paperspace, but not so good as DraftSight in other areas. Here are some screen shots in stages. Background JPEG, Grid on & Grid off. Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463961 Share on other sites More sharing options...
240260280z Posted February 20, 2015 Share #18 Posted February 20, 2015 Here is a little update, still messing around with the layout a bit. moving things around to get a better fit with the wiring spaces. Ill add the colour key later. It looks great! You may wish to consider thicker wires so that two-colour wires can be seen at further zoomed-out views. Thicker wires may also help in reading printed versions too! It is s nice to see the schematic!! BIG THANKS! Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463964 Share on other sites More sharing options...
EuroDat Posted February 20, 2015 Author Share #19 Posted February 20, 2015 It looks great!You may wish to consider thicker wires so that two-colour wires can be seen at further zoomed-out views. Thicker wires may also help in reading printed versions too!It is s nice to see the schematic!! BIG THANKS!Blue, thanks for the input. I was coming to that conclusion too. The line weights are ok on A1 format prints, but if you drop it down to A3 the detail is lost. I want to get it so you can print it on A2 or A3 and maybe make a 4 piece drawing you can print on 4x A4's and tape them together to make a A2 drawing.Ill play with the line weights tomorrow.Chas 1 Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463968 Share on other sites More sharing options...
tamo3 Posted February 20, 2015 Share #20 Posted February 20, 2015 AutoCAD is appropriate to use like this work, but I don't have it. I used Adobe Illustrator to trace line... Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-463981 Share on other sites More sharing options...
EuroDat Posted February 21, 2015 Author Share #21 Posted February 21, 2015 Blue,I increased the line weights by 100% (Scale factor 2). See what you think, I can quickly adjust it if they are still to thin.Tomorrow Ill divide the schema into 4 A4 and see if it prints ok. ChasColorWiring240Z1971_Rev_0 21-feb-2015.pdf Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-464052 Share on other sites More sharing options...
240260280z Posted February 21, 2015 Share #22 Posted February 21, 2015 Fantastic! Looks perfect! Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-464068 Share on other sites More sharing options...
munters Posted February 22, 2015 Share #23 Posted February 22, 2015 It looks realy good. The first thing i looked at was the glass heating and thought you should recheck this connection... Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-464100 Share on other sites More sharing options...
geezer Posted February 22, 2015 Share #24 Posted February 22, 2015 (edited) Does anybody have information on the "PASSING RELAY" See screenshot. Its on the original wiring diagram I traced. A lot of diagrams don't have it so it seems to be some kind of option or a later addition. Other markets/models had a button on the end of the turn signal stalk. When depressed the headlamps would momentarily flash, the same as our "optical horns" do today. The passing relay has 4 wires connected to it. The R/W (red with white stripe) is spliced into the headlight dimmer wire. The Black is a ground wire. The Red is spliced into the headlight 12V circuit via a fuse to the fusebox busbar. The B/Y (black with yellow stripe) makes a straight run to the passing switch, which is the white button on the end of the turn signal stalk, if so equipped. Edited February 22, 2015 by geezer Link to comment https://www.classiczcars.com/topic/50953-240z-serie-i-color-wiring-diagram/?page=2#findComment-464101 Share on other sites More sharing options...
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