Either way, I think you are fine since the duty cycle controls the output.
Once the weather warms up, I will scope/data log my alternator control line and the output voltage and see if the FSM is accurate. Just over 6 volts is a little odd.
Also, in looking at the PCS section, it looks like the duty cycle is inverted.
What normally looks like 60% (as in 60% of the period ON) is shown as 40%.
It is also my understanding if you disconnect the PWM control line at the alternator, "the normal power generation is performed according to the
characteristic of the IC voltage regulator of the alternator." - From the CHG section.
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