1988 90 - 19J Lighting Issue

billythewhizz · May 13, 2020

Hi
I've had a drain on the battery and traced it back to the lighting circuit - Theres 2 relays, the first one (non yellow) seems to be the source of the issue - is this a dim dip relay? I cant seem to get the wiring sequence right to allow the side light and headlights to work correctly - can anyone offer any advice?

doriz · May 13, 2020

Is it definitely a relay as i had a similar issue last year which turned out to be the main beam stalk. You can isolate this to double check?

nobber · May 16, 2020

billythewhizz said:
Hi
I've had a drain on the battery and traced it back to the lighting circuit - Theres 2 relays, the first one (non yellow) seems to be the source of the issue - is this a dim dip relay? I cant seem to get the wiring sequence right to allow the side light and headlights to work correctly - can anyone offer any advice?

View attachment 209065 View attachment 209066

Is JP's still open? Or Cupids?

billythewhizz · May 24, 2020

OK - so i've replaced the lighting switches and that appears to have sovlved the drain - it starts after having the battery connected for 2 days

Thanks!

However, now im finding that if i put on the main beam one light is dimmer than the other - same applies to the high beam - also should he relays be heating up after being on for half an hour?

Hicap phill · May 24, 2020

billythewhizz said:
OK - so i've replaced the lighting switches and that appears to have sovlved the drain - it starts after having the battery connected for 2 days Thanks!

However, now im finding that if i put on the main beam one light is dimmer than the other - same applies to the high beam - also should he relays be heating up after being on for half an hour?

It’s probally a bad earth for the lights. Remove plastic spats & clean up the earths on the inner wing

billythewhizz · May 24, 2020

Hicap phill said:
It’s probally a bad earth for the lights. Remove plastic spats & clean up the earths on the inner wing

I was wrong - on a high beam, the left hand light goes to high but the right hand side turns off.... Still an earth issue?

Hicap phill · May 24, 2020

billythewhizz said:
I was wrong - on a high beam, the left hand light goes to high but the right hand side turns off.... Still an earth issue?

Blown bulb

billythewhizz · May 24, 2020

was hoping but no. When on the high beam there doesnt appear to be any power going to the right hand headlight

Hicap phill · May 25, 2020

Check the fuses then. Each side is separately fused.
You got glass fuses? If so they corroded in the holders
Start there & work forward all the cables go straight from fuse box area to the head lights. Next joint would be behind the lights,
Remove spats to get to cables

billythewhizz · May 26, 2020

Can't believe i missed that - fuse blown - all good now. Many thanks for the answers to some stupid questions

Hicap phill · May 27, 2020

Thanks for the update. Glad all sorted

1988 90 - 19J Lighting Issue

billythewhizz

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doriz

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nobber

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billythewhizz

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Hicap phill

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billythewhizz

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Hicap phill

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Hicap phill

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