Lotus Elan

S4 Dip Switch too many wires

PostPost by: tonyabacus » Sun Mar 31, 2024 2:43 pm

Just installed new dash harness from Autosparks, but have come across a couple of issues, car is a 1970 S4 Coupe and was shipped to S.Africa many years ago, and have found several bodges so replaced front engine harness and relays, now doing dash wiring.
Main Issue 1:
Dip switch has different colours to diagram and harness as follows and have been connected as follows

Harness Dip switch
1. Blue/brown Blue/red
2. Blue/purple Brown/red (could be red/brown as stripes are equal in size)
3. Blue.black Blue/white
4. Blue/green " "
5. Brown ?????

Items 3 and 4 on the new harness are connected together and assumed to be the main beam lights and warning light.

But anyone know what the plain Brown wire fom the dip switch is for or where it is supposed to connect to.

Tony
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PostPost by: David1953 » Sun Mar 31, 2024 5:05 pm

I think my replacement dip switch had a pull flash option, that is not much use without a vacuum connection so I left disconnected.
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PostPost by: tonyabacus » Fri Apr 05, 2024 1:19 pm

Thanks David, checked this out and appears the Brown may well be a flasher switch on the column arm.

As the colours from the column headlight switch are different to those in the harness, can anyone verify which colour wires are connected between the two
Tony
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PostPost by: alan.barker » Fri Apr 05, 2024 2:05 pm

On +2S130 cars when the Dip Switch is in High Beam position you pull back for Headlamp Flash. It actuates the Light Solenoid Valve.
Or it did on my 1973 +2S130.
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
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PostPost by: oldelanman » Fri Apr 05, 2024 3:05 pm

As the colours from the column headlight switch are different to those in the harness, can anyone verify which colour wires are connected between the two



This is how my S4 is connected ....

Steering Column Wiring Connections (2).jpg and
Roger
S4 DHC
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PostPost by: tonyabacus » Fri Apr 05, 2024 9:31 pm

Thanks Roger and others, I think your diagram may hold the key so will check it out tomorrow
Tony
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