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Old 08-10-2021, 06:00 PM   #24
BlueBoy
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Join Date: Dec 2012
Drives: 2013 Blue 6MT FR-S
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Quote:
Originally Posted by Ultramaroon View Post
ECU controls charge rate. It's normal for voltage to fluctuate. I haven't yet read of any alternator failures that didn't affect power steering but just in case...


https://gt86stuff.onrender.com/t3Por...01AR909JX.html



Yeah, I should've mentioned the power steering failure happened then the car stopped running within 5 more minutes of driving.



I don't have both an ammeter and voltmeter to simultaneously check voltage and current, but at 2000 rpm when reading just the voltage across terminal B of the alternator to ground it reads about 5.7 V which is really low. Do you know if the voltage reading is meaningful without measuring current across terminal B simultaneously?
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