Help - brake light fault on 156

Hi,

I currently have a fault with the off side break light, it doesn't work!!

When the engine is switched on the light is slightly illuminated which I
assume is how the warning light is shown on the dashboard.

I have checked the obvious, i.e bulb and fuse, all ok. I have changed over
the bulb housing in the boot, not that. Checking with a volt meter -13 dc is
showing at the bulb.
Has anyone got any ideas of what else to check?
Could this be caused by a faulty brake switch at the pedal that is not
breaking the return to earth?
If so, how easy is it to change these switches?

Any assistance appreciated as the wife had a flat battery this morning which
was my fault!!!

Thanks
Stu

Hi Stu,
When the light is dim and the other is normal it could be the earth to
the bulb, I had trouble for months with the rear fog warning of bulb
failure, then every time I got out to check, it was ok. It turned out
to be the earth termial in the bulb holder, making and breaking contact
with the bulb with the smallest of vibration. After bending it very
slightly it was cured and no more bother. to check the earth, get a bit
of wire, and with the break pedal pressed connect to a good clean earth
point then touch the other end onto the side of the bulb itself, [WHILE
STILL IN THE HOLDER] it should go bright, if not you may have to get
the wiring checked by an auto electrician.
John, UK.

John, UK. wrote:

> Hi Stu,
> When the light is dim and the other is normal it could be the earth to
> the bulb,

Almost certainly an earth somewhere. Not the switch cos that would affect
them all

> I had trouble for months with the rear fog warning of bulb
> failure, then every time I got out to check, it was ok. It turned out
> to be the earth termial in the bulb holder, making and breaking contact
> with the bulb with the smallest of vibration. After bending it very
> slightly it was cured and no more bother. to check the earth, get a bit
> of wire, and with the break pedal pressed connect to a good clean earth
> point then touch the other end onto the side of the bulb itself, [WHILE
> STILL IN THE HOLDER] it should go bright, if not you may have to get
> the wiring checked by an auto electrician.

Aye

John, when you reply to a post, it makes things a lot easier if you leave a
chunk of the text you are replying in

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Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

Thanks for the info, I'll give it a go.

Stu


"John, UK." > wrote in message
ups.com...
> Hi Stu,
> When the light is dim and the other is normal it could be the earth to
> the bulb, I had trouble for months with the rear fog warning of bulb
> failure, then every time I got out to check, it was ok. It turned out
> to be the earth termial in the bulb holder, making and breaking contact
> with the bulb with the smallest of vibration. After bending it very
> slightly it was cured and no more bother. to check the earth, get a bit
> of wire, and with the break pedal pressed connect to a good clean earth
> point then touch the other end onto the side of the bulb itself, [WHILE
> STILL IN THE HOLDER] it should go bright, if not you may have to get
> the wiring checked by an auto electrician.
> John, UK.
>