Red ignition warning light not working

L.A.B., You were correct. The yellow wire was faded white. Thanks for your post.

NistheB, Yes I was looking to connect the new SS3AWP relay directly to the stator green/yellow wire. But after your comment I won't do that.
I will use the wires on the new harness. However I don't have a rectifier any more with the electronic ignition. On the new Lucas wiring harness the warning light assimilator has a brown wire with a blue strip and a red wire. The only wires that match the correct wiring colors is the Blue flasher unit. It has the white wire with brown stripe, green wire with yellow stripe and a red wire. On the headlight wiring harness the Ignition Red warning light has a white wire and a white wire with a brown stripe. I will connect the white/brown stripe wire on the warning light and the other white wire to the white wire connector which is hot when the key is turned. Is this correct?

nortonisthebest said:

However I don't have a rectifier any more with the electronic ignition.

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You do, but it is incorporated into the reg/rec unit.

nortonisthebest said:

On the new Lucas wiring harness the warning light assimilator has a brown wire with a blue strip

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No.

nortonisthebest said:

The only wires that match the correct wiring colors is the Blue flasher unit. It has the white wire with brown stripe, green wire with yellow stripe and a red wire.

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If it's a blue can, that is almost certainly the 2MC emergency starting "CAPACITOR" not a flasher unit. If so, then you have assimilator and 2MC wires muddled.

nortonisthebest said:

On the headlight wiring harness the Ignition Red warning light has a white wire and a white wire with a brown stripe. I will connect the white/brown stripe wire on the warning light

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White/brown [WN] from the light would normally connect to "WL" on the assimilator. Edit: or (positive earth/ground) Cool Cat black wire:

http://www.coolcatcorp.com/product/SS3AW-P.html
http://www.coolcatcorp.com/SS3AW-P.doc

nortonisthebest said:

and the other white wire to the white wire connector which is hot when the key is turned. Is this correct?

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That is correct.

Les, Thanks for responding.
The Lucas wiring diagram I have came with the new wiring harness and the green/yellow wire in the wiring harness goes to the blue lamp flasher unit, master ignition switch,stator and rectifier. Looking at the Old Britts charging diagram for single phase alternator with voltage regulator/rectifier, http://www.oldbritts.com/simp_wd.html, it shows the Alternator, battery, warning light assimilator connections. What I am concerned with is the green/yellow wire going to the master ignition switch. If I connect the white/brown wire to the warning light in the headlight shell and connect the white wire to the other white wires in the headlight shell I have two power sources one from the master ignition switch and the other from the headlight white wire connections. My solid state rectifier/regulator has the black, two yellow and one red wire like what the Old Britts diagram shows. I'm just not sure how to wire it correctly? The Lucas wiring diagram part number is 54960724. Note: The Warning Light Assimilator, on the Lucas diagram, has a brown/blue wire and a red wire. The only wires that have the correct color match is the Blue Lamp Flasher unit on the Lucas wiring diagram. I hope this isn't too confusing?

nortonisthebest said:

The Lucas wiring diagram I have came with the new wiring harness and the green/yellow wire in the wiring harness goes to the blue lamp flasher unit, master ignition switch,stator and rectifier.

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That Lucas diagram must be wrong, as green/yellow [GY] runs from the alternator stator to the rectifier (or in your case the solid state regulator box), and assimilator "AL" terminal ( [GY] on the 1971 factory wiring diagram).

nortonisthebest said:

Looking at the Old Britts charging diagram for single phase alternator with voltage regulator/rectifier, http://www.oldbritts.com/simp_wd.html, it shows the Alternator, battery, warning light assimilator connections. What I am concerned with is the green/yellow wire going to the master ignition switch.

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There shouldn't be any "green/yellow" going to the master switch.

nortonisthebest said:

If I connect the white/brown wire to the warning light in the headlight shell and connect the white wire to the other white wires in the headlight shell I have two power sources one from the master ignition switch and the other from the headlight white wire connections.

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Correct, because green/yellow doesn't go to the ignition master switch.

nortonisthebest said:

My solid state rectifier/regulator has the black, two yellow and one red wire like what the Old Britts diagram shows. I'm just not sure how to wire it correctly?

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Connect the two reg/rec yellow wires to the two stator wires, it doesn't matter which way as that part of the system is AC.
Red is positive, so connect to earth/ground or the battery positive terminal.
Black is negative so connect to the negative side of the battery which should be brown/blue [NU].

nortonisthebest said:

The Lucas wiring diagram part number is 54960724. Note: The Warning Light Assimilator, on the Lucas diagram, has a brown/blue wire and a red wire.

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Either the Lucas diagram is wrong or you are looking at it wrong? Three wires connect to the assimilator = white/brown [WN], Green/yellow, [GY] and red.

nortonisthebest said:

The only wires that have the correct color match is the Blue Lamp Flasher unit on the Lucas wiring diagram. I hope this isn't too confusing?

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There is no "blue lamp flasher unit"
That is an Interpol component and not fitted to 'civilian' models, in which case I think you may be mistaking the blue can 2MC for this blue lamp flasher unit, note that the missing item is a BLUE LAMP / flasher unit, and not a BLUE (coloured) /lamp flasher unit!

The 2MC "CAPACITOR" however, is blue in colour.

I think the green/yellow you're seeing at the master switch is, in fact a blue/yellow?

Edit:"Blue lamp flasher unit" should be: ASSIMILATOR

"Warning Light Assimilator" should be: ACCESSORY SOCKET ("Battery charging point or power point")

You will find these three wires on your main wire loom directly near or above your headsteady location. With spade connectors (female).
Red two wire into one spade, Green/yellow single into spade, White/brown single into spade connector. This is where the assimilator plugs into. Concentrate on the main harness and not the headlight harness.
Cheers,
Thomas
CNN

L.A.B. said:

I think the green/yellow you're seeing at the master switch is, in fact a blue/yellow?

Edit:"Blue lamp flasher unit" should be: ASSIMILATOR

"Warning Light Assimilator" should be: ACCESSORY SOCKET

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L.A.B.
I think this diagram is wrong. Where it locates the “ blue lamp flash unit” this is the location for the assimilator.
Where it locates the “Warning light assimilator “ this should be for the auxiliary power plug.
Thomas
CNN

CanukNortonNut said:

L.A.B.
I think this diagram is wrong.
CNN

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Yes, at least two items on it are wrong (see edit above)!

Ok gotcha
we are playing time delay typing :lol:
Cheers,

Thomas
CNN

Ok, let me see if I understand what you are saying. The Blue Lamp Flasher unit connections should be the Warning Light Assimilator connections. I should disconnect the Green/Yellow wire on the Master Ignition switch. Then I should wire it like the Old Britts diagram shows.
On the Old Britts diagram it shows a Green/Black wire coming off the Alternator. This Green/Black wire should be the Green/Yellow wire that goes to one of the yellow wires from the solid state voltage Rectifier/Reg. The Green/Black wire from the Alternator which is the Green/yellow wire is connected to the solid state Voltage Rectifier/Reg. The white wire from the Red warning light would connect to the other white wires in the headlight shell. The Red wire goes to frame ground (Positive ground). The white/Brown wire connects to the Black wire on the SS3 relay. Correct?

nortonisthebest said:

The Blue Lamp Flasher unit connections should be the Warning Light Assimilator connections.

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Correct (see manual, diagram).

nortonisthebest said:

I should disconnect the Green/Yellow wire on the Master Ignition switch.

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No, because there shouldn't be any "green/yellow" at the master switch, it's blue/yellow.
The other three master switch wires are brown/blue [NU](1), white [W](2), and brown/green [NG](3).

Blue/yellow [UY] connects to switch terminal (4) if the switch has a terminal 4, if not, then leave blue/yellow disconnected but read this:
marks-norton-commando-rebuild-t23807-60.html#p328909

nortonisthebest said:

Then I should wire it like the Old Britts diagram shows.
On the Old Britts diagram it shows a Green/Black wire coming off the Alternator. This Green/Black wire should be the Green/Yellow wire that goes to one of the yellow wires from the solid state voltage Rectifier/Reg. The Green/Black wire from the Alternator which is the Green/yellow wire is connected to the solid state Voltage Rectifier/Reg.

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Correct, as:"green/black" on the OB diagram should read: green/yellow.

nortonisthebest said:

The white wire from the Red warning light would connect to the other white wires in the headlight shell. The Red wire goes to frame ground (Positive ground). The white/Brown wire connects to the Black wire on the SS3 relay. Correct?

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Yes, correct. Edit: Re: the SS3AWP orange wire connects to red that ultimately goes to ground, if that's what you meant?

:lol:
Glad we got that all straightened out.
All that for a little red light.
Cheers,
Thomas
CNN

Ok I thank I got it. I was looking at the Lucas wiring harness diagram and it shows a Green/Yellow going to the master ignition switch. I looked at my 4 position ignition switch and it is as you said, NO Green/Yellow but Blue/Yellow. Thank you for all your help and for sticking with me.
God Bless, Paul