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Thank you, but this test assumes the wiring to be correct; read on.

This problem was the result of really lousy work. When I reconnected
the disconnected wires I had forgotten how they had been connected and
I connected them by their length and ease of reconnecting them. My
first choice of wires to the air temp switch would have been correct
but they were a little short. I ended up connecting the wires of the
choke heater to the air temp switch, cutting both out of the circuitry,
and grounding "L" of the voltage regulator. I didn't notice that the
color codings didn't match, but I thought it is odd and I was
suspicious that two pairs of wires originating at the same place (near
the starter) of a harness are connected - this didn't make sense! And
again later when I looked for the cause of the ON battery light I was
suspicious about these two pairs of wires but did not act. I had a very
strange block.