Headlamp Going Up and Down Continuously, Even with Engine Off

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Gray14
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Model: Eclat 2.2
Colour: Monaco White
Year: 1981

Headlamp Going Up and Down Continuously, Even with Engine Off

Post by Gray14 »

Out for a drive yesterday in the Eclat (2.2) and the driver's side headlamp starts going up and down continuously.

The lights were off, think I had just indicated, maybe flashed when it started and it continued even after parking up with the engine turned off.

Good job I have a battery isolator fitted. Restarting, sometimes it stopped for a while, then started happening again.

Which part of the headlamp mechanism failed?

TIA G

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Tanz
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Re: Headlamp Going Up and Down Continuously, Even with Engine Off

Post by Tanz »

I had a similar problem that turned out to be water in the relay. Worth checking.
Cheers, Phil
Never take life seriously, nobody gets out alive anyway!

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Gray14
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Joined: Wed Oct 06, 2021 22:40
Model: Eclat 2.2
Colour: Monaco White
Year: 1981

Re: Headlamp Going Up and Down Continuously, Even with Engine Off

Post by Gray14 »

Ok so I've found this only happens when I, usually mistakenly, activate the headlamp flasher. When I use the main or dipped beam they raise and lower correctly. I think that indicates the motor and it's relays are ok.

Is the headlamp flasher relay located in the driver's side pod as well? Or could it be the switch?

Many TIA

richardw
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Re: Headlamp Going Up and Down Continuously, Even with Engine Off

Post by richardw »

The headlamp flasher relay isn’t in the pod; I suspect - but don’t know - that it’s behind the offside kick panel with the others.

Edit: looking at my wiring diagram, I don’t understand the logic of the wiring. However the connections on the relay are:

Purple/blue to lights switch (via an inline fuse);
Blue/white to headlights
Blue to lights switch with spur to flasher stalk, via a diode, and blue/green to headlight lifter motors (off the same terminal)
Brown/green to headlight lifter motors;
Earth

Hope this helps!

Cheers, Richard
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