Leads on the Alternator

[SwissSteve]

Just refitted the alternator and I was surpised to see in addition to the main 3 pin alternator plug an additional wire with a 1/4" female spade connector in the same cable bundle as the alternater cables.

Any ideawhere thisgoes? I could not see any sensors or cables in the vicinity of the alternator

[SteveP]

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I had exactly the same problem when I replaced my alternator last year - gave Faversham Classics a ring, they said don't worry, the older alternators used this to power the ignition light - just leave it disconnected it's not needed they said - and they were right!

[Kevin Garrod]

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This is the 'battery sensing' wire, don't worry you don't need it on most modern alternators. ( I know this because I had the same concern when I changed my alternator last year, nowhere to put the spare wire!) Just tape it up out the way so it doesn't short out on the bodywork or anything

[GDPR]

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If it is just brown with no tracer, it'sa battery sensing lead and can be ignored if you have a machine-sensed alternator.... insulate it off though as it is battery live

Russ

[GDPR]

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Great minds Kev

[SwissSteve]

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Thanks guys, that was the answer I wanted