R56 Bad battery/alternator indicator lamps
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2nd Gear
Joined: Jul 2008
Posts: 135
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From: Orange County, California
Bad battery/alternator indicator lamps
I noticed that there is a separate indicator light for a bad battery vs. a bad alternator. Does anybody know how the car tests for these scenarios?
Most cars combine these into one "Battery" warning light.
Anybody???
Most cars combine these into one "Battery" warning light.
Anybody???
The good alternator would be 14.4V at charging. Less would mean bad alternator. The battery would put out 12V at consumption, less means battery.
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Moshu-Clubman
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Jul 13, 2016 08:54 AM