Headlights / brights not working

dyladams

Well-Known Member
I am in uk
Aug 15, 2011
402
77
48
London
Garage
Hi All,

I have done a search but am not able to find any information that might solve my problem.

My headlights work under normal use and when I "Flash" my brights everything is OK. However if I put the lights on "high beam" or "brights", all the lights go off. Sometimes they all come on but it does take a while.

This has been a slow deterioration of the system. I have changed the Red relay for the lights under the bonnet but this has had no effect.

What could the possible problems be and is there an easy solution.

Just a bit of info on the Vehicle:
1996 HDJ81 24 valve Turbo diesel (Japanese import) which means that the inner headlights are wired as fog lights and not bright lights.
Mileage is fairly low at just over 100k miles.
Vehicle is pretty much standard.

Any assistance would be greatly appreciated.
 

frank rabbets

Well-Known Member
Mar 1, 2010
4,965
1,230
113
Stourbridge
My relay failed and got so hot the plastic melted and dribbled down into the fuse board. I was able to pull the relay out and pick the bits of now hardened plastic out of the relay contact sockets. i could then bend these closed and push a new relay in. My relay was the green one.
 

dyladams

Well-Known Member
I am in uk
Aug 15, 2011
402
77
48
London
Garage
I previously replaced the relay on mine and had no change. Wonder what the chances are of having 2 dud relays....
 
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stumog

Well-Known Member
I am in england
Oct 3, 2012
3,508
641
113
Mine has this.

Move your headlight rotary switch slowly between levels and see if they come back on.
 
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The old school

New Member
I am in uk
Nov 20, 2018
12
1
3
sounds like a rely problem have you test it out with a multi-meter.The description of rely would be on the cover of the box also when you said @However if I put the lights on "high beam" or "brights", all the lights go off , it sounds like you have a short circuit . for that i would check the ground wire and any damage to the wire ect.

Good luck

let us know how you get on please
 

dyladams

Well-Known Member
I am in uk
Aug 15, 2011
402
77
48
London
Garage
Thanks all

I tried some of the suggestions today but planning to do some more investigation works tomorrow. Otherwise think I need to find a decent auto electrician
 

Steveindar

Member
I am in tanzania
Nov 17, 2014
158
10
18
Ifupira,Tanzania
Thanks all

I tried some of the suggestions today but planning to do some more investigation works tomorrow. Otherwise think I need to find a decent auto electrician
You might also want to check the relays in the driver side footwell. I had something similar to that happen and found a main relay burnt on the mounting board. I might have posted about it too.
 

AboutAfrica

New Member
I am in namibia
May 19, 2019
20
17
3
Sounds like it could be a possible earth wire problem. Have a good look around under the bonnet and check for corrosion or bad contact on earth wires, they can cause quite a bit of electrical havoc when not making a good connection.
 
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