On Mar 21, 2009, at 10:46 AM, Randall wrote:
>> Where does the third brown/blue wire come from
>> and what does it connect to?
>
> I don't know. But one way forward is to check that none of them are
> touching ground, and then connect the battery temporarily.
OK, first I need to buy a battery (what size?).
> Use a test lamp
> or voltmeter to discover which brown/blue is hot. That wire will have
> to go
> to the ignition switch.
Let's hope only one wire is hot.
> Then use your test lamp (better than a voltmeter for this test)
> between the
> hot wire and each of the other NU wires. Should be no light. Turn on
> the
> headlight switch, check again.
OK , I need to buy one of these (headlight switch) as mine is missing.
>
> One possibility might be that some DPO has installed the wrong wiring
> harness and the extra
> NU is simply extra. Even the diagram in my TR4 owner's manual only
> shows 2
> NU wires.
Maybe, but Both my original and replacement wiring harnesses are the
same. They have three brown/blue wires. Surely someone else must have
this same setup.
>
>> Also how do you know when
>> a good voltage stabilizer goes bad?
>
> Criminal record?
Thanks,
Gary O
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