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Alternator wiring

Posted: 31 Aug 2019, 16:07
by macc
Ok peeps i`ve got a disconnected black/red wire it comes out of the loom with the blue exciter warning lamp wire should this black/red be connected to d+ with the blue exciter terminal on alternator.

Re: Alternator wiring

Posted: 31 Aug 2019, 18:17
by bigherb
Black/red is normally brake lamps wiring. But what engine and year is it?

Re: Alternator wiring

Posted: 31 Aug 2019, 18:48
by macc
Hi bigherb it was a a 1.7ky just changed to 1.6 jx van is a 1988 the wire is the same gauge as the blue excite wire ,when I put the avo to it I get a reading of .2v with engine off and about 6/7v with engine running.

Re: Alternator wiring

Posted: 31 Aug 2019, 20:55
by bigherb
Then I think you mean red/black, which connects to the W terminal in the back of the alternator for the RPM signal.

Re: Alternator wiring

Posted: 01 Sep 2019, 00:54
by macc
Thanks for reply bigherb so would this still connect to the w terminal even though the van hasn't got a rev counter.

Re: Alternator wiring

Posted: 01 Sep 2019, 06:04
by bigherb
Yes, It works the oil light buzzer.

Re: Alternator wiring

Posted: 01 Sep 2019, 08:06
by macc
Ok that makes sense now cheers.