1979 RoW SC Headlight switch

[Cad.Guy]

I know this has been beat to death but still confused.
I found a layout of the wiring but not sure what the color nomenclature is.
I have a Bentley manual ( total waste of money ) and it doesn’t have all the terminals
.

[Walter_Middie]

This is what I have for headlight switch wiring - I'm not sure what years this covers, but I hope it helps:

Power comes into the switch at two terminals, 30 and 75
.
Terminal 30 hot at all times 

Terminal 75 Hot in on/run. 

Terminal 56 is the feed for the headlight circuit only. 

Terminal 57 is the parking light indicator.

Terminal N [which I assume is K on the factory schematic] is for the license plate lights & the non-fused ashtray light

Terminals 58L and 58R are for the left and right parking lights

Terminals 58A are the interior lights

Additionally:
The headlights should only be on if the key is in the on/run position. That is the only time power is supplied to terminal 56. This explains why when you turn the car off at night the parking lights remain on but the headlights turn off. 

Terminal 30 should have 2 wires attached to it a red wire and a Red/white wire. The red/white wire goes to the headlight flasher switch so you can flash your lights at Boxsters, but they won't flash back.


There are two green/blk wires on terminal 58L and two green/red wires on Terminal 58R

Only one White/blk wire on terminal 56
A red/white wire on terminal 75

Green wire and a blk/blue wire on N

White green on 57

3 black/blue wires on 58a


[Walter_Middie]

[Cad.Guy]

Thanks
Found out my diagram had German abbreviated colors ( duh , should have thought of that.).
That helps 👍

[timmy2]

Walt, 58L and 58R use grey/black and grey/red wires.
Your post said green/black and green/red....

[timmy2]

78/79 US wiring diagram.
https://www.dropbox.com/s/yjfoxfvwlci6lys/911_electrical_78SC_USA.pdf?dl=0

[Cad.Guy]

Thanks
Makes a lot more sense in color then in black-and-white

[Walter_Middie]

Thanks Dennis - good catch. I'll have to fix my notes.

I checked to see if it was possible that earlier cars had green rather than grey, but my books for 74 and 75 clearly show GY/BK and GY/RD (grey/black and grey/red) for 58L and 58R respectively.