Headlight Motor Relay

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1800oldb
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Headlight Motor Relay

Post by 1800oldb » Wed Mar 27, 2019 8:31 am

Greetings,
searched the forum but can't find the answer to my question.
What is the P/No of the headlight motor relay?
This is the bottom relay of the three in the column nearest the rear wall of the engine compartment.
In the handbook it is labelled 'Headlamp Motor Switching'.
If the relay is obsolete and unobtainable, is there an alternative?
I've tried a relay of similar configuration but it didn't work. However, I don't know if that one was serviceable in the first place.
Any information or advice gratefully received.
Mike



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scimjim
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Headlight Motor Relay

Post by scimjim » Wed Mar 27, 2019 8:37 am

All of the relays in the block are 5 pin as opposed to the more "normal" 4 pin - there are two types though - A&B
untitled.png
untitled.png (12.28 KiB) Viewed 452 times
not specific to the car and all readily available.

Diagnose by swapping with one of the others?

I have a tin full of them if you need an original.


Jim King

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Roger Pennington
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Headlight Motor Relay

Post by Roger Pennington » Wed Mar 27, 2019 11:26 am

Not quite clear from your note, Jim, are type A & B interchangeable, or do you need to change like for like?


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scimjim
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Headlight Motor Relay

Post by scimjim » Wed Mar 27, 2019 3:31 pm

no, they're not interchangeable - IIRC there is a legend on the actual relay that will identify type.


Jim King

SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), 1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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Headlight Motor Relay

Post by Roger Pennington » Wed Mar 27, 2019 3:33 pm

That's interesting, thanks. :)


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1800oldb
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Headlight Motor Relay

Post by 1800oldb » Wed Mar 27, 2019 5:57 pm

Thanks Jim.
It's a Type B. There's no legend on my relay, just some numbers.
I'll try Halfords tomorrow - it ought to be quicker than posting from Gloucester.
Mike



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Headlight Motor Relay

Post by 1800oldb » Thu Mar 28, 2019 4:29 pm

Greetings, one and all.
Quote "it ought to be quicker than posting from Gloucester"
It would be, if I could obtain a relay at my local Halfords but they don't appear to sell relays anymore!
My local car specialist provided a relay. He checked the numbers and lay-out and pronounced it was the "right one".
Installed relay in car and zilch. Lights never even 'popped up'.
Re-installed the old relay and everything worked as it should. Probably the WD40 squirted onto the innards of the relay.
Not leaving things to chance, though.
Jim, a pm is going to be winging your way within the next couple of minutes.
Thanks to all.
Mike



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Headlight Motor Relay

Post by scimjim » Thu Mar 28, 2019 7:08 pm

PM received - I’ll post one tomorrow Mike.

Just for reference, I photographed the top of a standard relay
2B10B8F5-0098-47D0-A6B3-AF0B7151343F.jpeg
2B10B8F5-0098-47D0-A6B3-AF0B7151343F.jpeg (165.18 KiB) Viewed 346 times


Jim King

SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), 1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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