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B+ is the large wire (B for Battery) D+ is the small one 200 1992

uid 27's pic
posted by  Art Benstein on  Fri Jun 4 23:30 CST 2010
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

Hi Charles,

Your mention of the "W" terminal in another response gives me better vision on this post, so I thought I would try to make things clear with a couple illustrations.

The W terminal is for Diesels to provide a tach signal. Not used in your 92. Connecting the exciter wire there would match your symptom.

The D+ exciter terminal is a stud, but usually fitted with a ring to tab adapter, so you should not have to modify your wiring harness, if you just screw on the male spade terminal adapter.







(So what's the D stand for? Bosch says "dynamo", but I like to think of it as "die", because your car will die after taking you a long way from home if this D+ circuit is not working.)
--
Art Benstein near Baltimore

Mistakes are the portals of discovery. -James Joyce






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