TwinTurbo.NET: Nissan 300ZX forum - If the dash bulb and check relay are good. Measure battery
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Subject If the dash bulb and check relay are good. Measure battery
     
Posted by jzack on October 21, 2017 at 7:43 PM
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In Reply To Re: Re: Re: 17.7v seems way off but let's reverify the measure. DO NOT posted by NIVO88T on October 20, 2017 at 10:32 AM
     
Message current drain with the car off, doors closed and yellow dash security light not flashing. If current draw is more than say 0.1 amps (100mA) your alternator is probably shot.

Generally with a bad alty diode bridge you'll see current draw in the 0.5 amp range or so.

     
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