Alternator wiring question
Alternator wiring question
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Discussion

jeboa

Original Poster:

547 posts

290 months

Sunday 14th May 2006
quotequote all
Okay, I put my hands up. I replaced my alternator yesterday and inbetween taking off the old and replacing the new, I forgot which of the smaller two wires goes to which contact.

Consulting the bible I started the car with just the main (thick) wires connected and measure around 14v on one of the other wires (brown/yellow). I assumed this is the correct one to wire to the 12v output side. I have wired the remaining black wire to the other contact (nearest the distributor).

Can anyone confirm that I have this right? The red led goes off once the engine is running and the voltmeter shows 13-14v when running.

THe only reason I ask, is that I have experienced a problem with the fan realy since the change, and now I doubting myself.

Many thanks in advance.

jeboa

Original Poster:

547 posts

290 months

Monday 15th May 2006
quotequote all
Found the problem.

For any one browsing the posts or searching - don't wire to the W output on the alternator.

Big mistake, but all fixed now!!