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neilcmusic

Active Member

• Dec 27, 2015

• #1

Series 3 headlights aren't working , full beam works , all other lights work , am thinking switch or bulb , on back of switch there are 3 wires , brown, red/black and red , has one come off ? Tried touching red and red and black but lights don't come on so does this mean it isn't the switch , surely both bulbs wouldn't have gone at the same time ? Any ideas how I can check bulbs , thanks

 

jamesmartin

Well-Known Member

• Dec 27, 2015

• #2

by testing the connector at the headlamp end, or trying a known good bulb

 

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divie

Well-Known Member

• Dec 27, 2015

• #3

I take it that you have cleaned and checked the earths ? Series three indicator stalks can die.

 

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neilcmusic

Active Member

• Dec 28, 2015

• #4

Just had a new stalk 2 months ago and all well so far, am going to check switch and bulbs , hoping its bulbs however im assuming unlikely both will have gone at same time.

 

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oddwriter

Member

• Dec 28, 2015

• #5

Mine had a similar problem. It turned out to be the headlight connections (bullet connectors) under the bonnet slam panel. Clean these well and check the earths.

 

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neilcmusic

Active Member

• Dec 30, 2015

• #6

Ok still not working , bulbs ok , switch ok , bullet connectors ok , stalk 2 months old , I'm assuming now that is a earthing problem , however was thinking would Hi beams still work if this is the case because they do?

 

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neilcmusic

Active Member

• Jan 1, 2016

• #7

Just a follow up to this , how many wires should there be on the back of the series 3 light switch , I have three, brown , red and black and red , has one fallen off ?

 

Blackburn

Well-Known Member

• Jan 1, 2016

• #8

Brown Power supply middle left
Red/black tail light and dash light switch supply two wires Top right
Blue column switch unit bottom left.Headlamp supply
Red bottom right front side lights

 

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neilcmusic

Active Member

• Jan 1, 2016

• #9

Thanks Blackburn , happy new year , this is how mine stand red in top , red and black in bottom , brown at rear of top , no blue wire however there is a random one floating about , switch only puts side lights on in either position , if I attach blue wire im sure it permanently puts full beam on because if I do this and pull stalk forward it doesn't make and difference , also with blue wire attached whichever way I place the switch it seems to go full beam then sidelights rather than the other was around , complete nightmare !

 

Blackburn

Well-Known Member

• Jan 2, 2016

• #10

Pulling column lever forward is flash function and is fed from a fuse direct [purple wire in attached drawing] not through light switch.
Lever pushed back is main beam mid position dipped you need the blue from column switch connected or you will not get headlight function.

 

Attachments

• lights.pdf

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cornish rattler

Well-Known Member

• Jan 2, 2016

• #11

Check the wiring behind the rad grill under the bonnet slam plate you will be amazed how much that part of the wiring gets messed about with

 

Blackburn

Well-Known Member

• Jan 2, 2016

• #12

Check the brown is in the right place see attached photo.
The small browns are extras fitted to mine.

 

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neilcmusic

Active Member

• Jan 2, 2016

• #13

Thanks , working all day tomorrow but will have a look Monday and include picture if no luck , thanks again

 

flat

Well-Known Member

• Jan 3, 2016

• #14

If it's anything other than a genuine switch it could have failed within 2 months easy

 

1977

Member

• Jan 4, 2016

• #15

I just soldered the connections on the left headlight as the previous simply crumbled and wires badly corroded. Problem solved until a new headlight is needed then it will be done properly. other than that it is almost always a connection problem behind the grill.

 

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John S

Well-Known Member

• Jan 5, 2016

• #16

You should have a blue wire to the switch. At the bottom I recall.