Hearlight won't pop up

[TVR200]

I have a TVR 200 and one of the headlights won't pop up.
I suspect one of the relays but which one?
there are 11 relays under the bonnet but my wiring diagram only lists 6, and the relays themselves are not marked in any way.
To make matters worse, all the wires are black. YES, ALL of them.
Anyone got any idea which relay does what?

Rhys

>>> Edited by TVR200 on Friday 8th October 14:00

[geddy]

Te actual wiring will depend on how many changes the factory put into your wiring over the first cars. I have generated circuits etc for my 280 which also has the 'none blacker' wiring scheme. It might help you. Drop me an email at ged_n at hotmail and I'll send u some information

[DJC1001]

If one side is working get someone to switch the lights on and off - you may feel/hear the relay work. The other relay will be the next along or more likely above / below.

Bible shows them 4th from left bottom and middle row.

David

[grahamw48]

Nipped outside this morning to fix the headlight dipped beams, which weren't working.

Identified the correct fuse in the bible (mine has all-black wiring ), and gave it a quick twiddle.

Voila ! Lights.

[wedg1e]

In essence, all the wedges use three relays for the basic function of popping the pods up. Later cars with auxiliary lights had more relays depending on which combination of 'main with flash', 'aux only on flash' etc the factory felt obliged to fit that year.

You have a 'control' relay that tells the pods they should be up, and a relay for each pod motor that actually supplies the power. Nine times out of ten (assuming fuses OK) it's not a relay fault but the limit switches in the pod motors that are defective. They tend to suffer from oxidation that prevents them from completing the circuit to the power relays.

One clue is to see whether the motors operate if you wind the manual knob on the end of the motor (acccessible from underneath the car). If the motor is OK but the switches aren't, after a few revolutions of the knob the pod will suddenly lift and then lower by itself. If you can keep on winding until the pod is right up, it's probably not the switches but a fuse, relay or motor fault - and again, the relay is the least likely suspect.

There's a circuit diagram on wedgepages if that helps.
The limit switches are easy enough to fiddle with, but you need to take the pod motor out first.


Ian

[stainless_steve]

grahamw48 said:

Nipped outside this morning to fix the headlight dipped beams, which weren't working. Identified the correct fuse in the bible (mine has all-black wiring ), and gave it a quick twiddle. Voila ! Lights.

Glad you have sorted it,i had a problem with mine winking quite funny at the time, it was late at night and all the ladies were waiting at the bus stop,every time i drove past one the car winked.maybe the SEAC was feeling horny
Turned out to be a relay,easy to find cos you could hear it clicking.

[grahamw48]

Haha!

Isn't it always the case though, that if something is going to fall off your car, or you miss a gear, it's bound to be just as you're hoping to turn those pretty girls' heads.

>> Edited by grahamw48 on Sunday 10th October 23:02

[TVR200]

Thanks for all the help - headlights now working!!

I cleaned all the fuses and examined all the relays (I still don,t know what they all do), but the light still did not work.
I crawled underneath and wound the headlight open to see if that helped but no change.
Gave up and went to have lunch.
After lunch I wandered back outside and stood drinking my coffee and wondering what to try next. It took me five minutes to notice that the lights were shut.
Hang about! Lights shut = motor must be working.
Jumped in, tested lights. Up, down, main, dip, flash all now OK.
So the car fixed itself while I was having lunch.
Don't you just love messing about with cars!