Dimmed headlights

Dimmed headlights

Author
Discussion

rabowman

Original Poster:

284 posts

188 months

Sunday 2nd August 2009
quotequote all
My 1990 400 SE has 'dimmed headlights' which meens that the pods have to raise when you put on the side lights.
Do any of you know what wires to disconnect to stop it, so that I can have the side lights alone w/o the pods up
Thanks
Rob

grahamw48

9,944 posts

238 months

Sunday 2nd August 2009
quotequote all
No idea, but irritating isn't it. yes

If you've noticed, the little uns are supposed to be parking lights....will stay on if you turn off ignition.
When did you last see someone use 'parking lights' ? hehe

Wedg1e

26,801 posts

265 months

Monday 3rd August 2009
quotequote all
Parking lights used to be a legal requirement for vehicles left parked on the road (as Graham probably remembers wink); I don't think they ever officially stopped the requirement, just that there are so many cars it became futile!

B@man

1,486 posts

204 months

Saturday 29th August 2009
quotequote all
Sussed it !!

My 400SE has (sorry had) non functional dim/dip headlights, so the pods popped up with the sidelights but the headlights didn't come on so it looked daft...

I thought the dim dip used the resistors that used to be near the PS pump, however further probing with a meter has confirmed that those where for the dash light dimmer (hence why they have 12v applied when the sidelights are on) as they where open circuit due to corrosion this explains off/off/on operation of the dash lights. I have now confirmed that the dim dip is the square black Lucas module velcro'd to the carpet next to the fuse box, with a 6 pin multi plug attaching it to the loom.

To stop the pods raising with the side lights there are a pair of brown/white wire's that go from the pod control relay to the diode and a second brown/white attached to the same pin on the relay that goes back into the loom (couldn't find where it went to ?) anyway cutting this keeps the pods down when the side lights are on, I've put a connector in here so I can restore the original operation if I need to, the single diode seems to be enough to keep the pods up for dip & main.

I then made some new brackets for the fuse / relay panel as the plastic ones broke...



Edited by B@man on Monday 31st August 11:30

rabowman

Original Poster:

284 posts

188 months

Monday 31st August 2009
quotequote all
Many thanks for that. I will let you know when completed

B@man

1,486 posts

204 months

Monday 31st August 2009
quotequote all
Thanks to you too !

Your post finally prompted me into sorting out something that has annoyed me ever since I got the car, it looks a lot better with the sidelights on with the lamp pods where they should be.

I did a bit of research on the dim dip thing and according to wikipedia it was only law for a few years (87 - 88) before the European commission threw it out. I guess TVR had already designed the looms so kept the dim dip part in just in case Brussels did a U turn.

One job down, the boot lock not popping the boot properly is next on the "little things that annoy me list" biggrin

Have fun, assuming your fusebox is still attached by screws it's really easy to get out but a complete tt to get back in place...

Edited by B@man on Monday 31st August 18:21

rabowman

Original Poster:

284 posts

188 months

Monday 31st August 2009
quotequote all
Fiance and mother comming for wk/end so will have plenty of excuses to hide in garage and do some work !!

B@man

1,486 posts

204 months

Monday 31st August 2009
quotequote all
rabowman said:
Fiance and mother comming for wk/end so will have plenty of excuses to hide in garage and do some work !!
Need a hand to lift the body off ? laugh

rabowman

Original Poster:

284 posts

188 months

Monday 31st August 2009
quotequote all
Don't use missionary !!!!!!!!!!!

B@man

1,486 posts

204 months

Tuesday 1st September 2009
quotequote all
Very good... biggrin

adam quantrill

11,538 posts

242 months

Monday 8th September 2014
quotequote all
The irritating thing about this whole "feature" is that my car still failed the MoT on a sidelight broken despite the fact that the pods come up and there's an extra sidelight on that side in there too.

So I will be doing the snippy thing. Now over to the Rev for some words....

matt-man

2,665 posts

219 months

Monday 8th September 2014
quotequote all
Fantastic revival of a very useful post!!

This is something I've always wanted to get around to doing and after reading b@mans clear instructions I went a did it and perfect!

thumbup

adam quantrill

11,538 posts

242 months

Monday 8th September 2014
quotequote all
Matt do the lights themselves stop glowing too? (Maybe hard to tell with the pods down...)

matt-man

2,665 posts

219 months

Monday 8th September 2014
quotequote all
Not sure adam..I'll take a look tomorrow... I would expect so.

Looks so much better...also I'll use them a lot now as early morning/evening drives when the suns low you need lights on.

mrzigazaga

18,555 posts

165 months

Tuesday 9th September 2014
quotequote all
adam quantrill said:
do the lights themselves stop glowing too? (Maybe hard to tell with the pods down...)
On Delilah the sidelights used to come on without having the pods up..However the lights were on even when the pods were down...Ziga

Sireatalot

627 posts

219 months

Tuesday 9th September 2014
quotequote all
mrzigazaga said:
On Delilah the sidelights used to come on without having the pods up..However the lights were on even when the pods were down...Ziga
same as Delilah happens on my 280i.. however. the 350i, pods go up with only sidelights on. Not sure why.. and what the differences are though. ( I'm a bit thick on that side of things )

B@man

1,486 posts

204 months

Tuesday 9th September 2014
quotequote all
matt-man said:
Fantastic revival of a very useful post!!

This is something I've always wanted to get around to doing and after reading b@mans clear instructions I went a did it and perfect!

thumbup
Cheers, glad it came in useful maybe it should be linked to the FAQ ??

mrzigazaga

18,555 posts

165 months

Tuesday 9th September 2014
quotequote all
B@man said:
Cheers, glad it came in useful maybe it should be linked to the FAQ ??
Yeah...Come on what you waiting for......smile

adam quantrill

11,538 posts

242 months

Tuesday 9th September 2014
quotequote all
You know, a wiki can be edited by any of you ;^)

JumboBeef

3,772 posts

177 months

Thursday 13th November 2014
quotequote all
matt-man said:
Not sure adam..I'll take a look tomorrow... I would expect so.

Looks so much better...also I'll use them a lot now as early morning/evening drives when the suns low you need lights on.
Did you ever have a look to see if the lights still come on even with the pods down?