6RA headlamp relay wiring

[cadwell]

I am getting on well with the rebuild of my S4, but being colour blind and also a bit thick on electrics I wonder if any of you electrical chaps out there could help me.
I am ok on the flasher relay with the resistor to trigger the modern flasher but I’m unsure of the connections on the headlamp relays.
Referring to the Elan wiring diagram can someone please tell me which colour wires go to C1,C2, W1 and W2, very grateful for any assistance, I would just like confirmation I am on the right track.

Many thanks

Peter

[cadwell]

Further to my last post re 6RA relays, I have wired as follows. If I am wrong I should be very grateful for any corrections. My wife is getting a bit fed up of colour identifying cable colours!

Main beam relay
W1 Black/ red. W2 Blue/black. C1 Blue. C2 Blue/ white
Dip relay. W1 Black/ red. W2. Blue/brown. C1 Blue. C2 Blue/ red

Thanks for any assistance

Peter

[Craven]

There are 2 relays for the headlamps, 1 for main beam & 1 for dip beam.

Main Beam relay. W1 Blue/Black C2 Blue
W2 Black/Red C1 Blue/White
Dip Beam relay W1 Blue/Brown C2 Blue Common with Main Beam.
W2 Black/Red Common With Main Beam.
C1 Blue/Red.
C2 connection are 12 volt from
C1 connection are from the M/Dip switch.
W2 connections go to Headlight pod micro switch.

[cadwell]

Hi Craven
Very many thanks for your reply. How very helpful! I don’t get many marks out of 10 for my efforts.
What a great forum this is where total strangers will take time to offer their advice.

All the best

Peter

[Craven]

I would say 10 out of 10 for effort; I posted my reply only minutes before your second post.
It just so happens that in this particular case the reverse of W1 & W2 and the reverse of C1 & C2 connections are irrelevant, only in some 6RA configuration are these terminal designations essential, there is a 3 pin and a 5pin 6RA relay that use W & C pinouts designations.
Well done.

[cadwell]

Very kind, thank you so much!

[smo17003]

I am also in the process of wiring in my headlamp relays (S4) and I have a question that perhaps @Craven, having responded to the original question, or perhaps another forum member would answer.

Rather than using the 6RA's I am using Hella fused relays and I am unsure if @Craven's method for wiring the 6RA is also applicable to a fused relay (I admit that my electrical knowledge is still lacking).
The fuse is on terminal 30, so should the Blue go to 30 and the Blue/White and Blue/Red go from 87 on their respective relays? I understand that 30 is equivalent to C1 and 87 to C2 on the 6RA's so this makes it opposite to how @Craven has suggested. On a non fused relay it shouldn't make any difference (or am I wrong?). My understanding is that the fuse on 30 would protect the Blue supply (or am I wrong again?)

Thanks in advance.

Mike

[Craven]

Mike
Wire as you suggest, but in strict electrical terms 30 is the C2 connection important only when terminals 87 & 87a are present on new type relays.
Fuse protects blue supply from faults on circuits connected to 87.
C1 = 87 C2 = 30 C4 = 87a
FWIW