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2012 Pilot batt warning light came on and will not go out. Alternator checks okay and battery checks okay. Any ideas? Vehicle starts right up without issue.
 

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How did you have the battery tested? FYI my battery was going bad and it still tested okay until it no longer cranked, then it failed. So my guess is the battery is on the way out.
 

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I installed a brand new battery to no avail. Current batt was put on a meter prior to starting and read 13V. Engine was started and bat disconnected and Alternator read 14.6V.
 

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In this case, you're looking at an alt on the way out. How's the assy belt, any slipping? Try resetting the ECM (take + and - cables off battery, touch them together, then reinstall battery).
 

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I installed a brand new battery to no avail. Current batt was put on a meter prior to starting and read 13V. Engine was started and bat disconnected and Alternator read 14.6V.
FWIW, disconnecting the battery with engine running is not recommended. It exposes the electronics to voltage spikes that are normally restrained by the battery.
 
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In this case, you're looking at an alt on the way out. How's the assy belt, any slipping? Try resetting the ECM (take + and - cables off battery, touch them together, then reinstall battery).
Belt is certainly not slipping.
 

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In this case, you're looking at an alt on the way out. How's the assy belt, any slipping? Try resetting the ECM (take + and - cables off battery, touch them together, then reinstall battery).
Belt is certainly not slipping.
 

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The battery light can also come on due to an alternator that is overcharging. Ideally, the system voltage at idle should be about 14.4 volts. 14.2 to 14.6 is probably ok. Any less indicates a weak alternator that may be near failure. Any higher could be caused by a bad voltage regulator, which is also part of the alternator. This is assuming that the battery is in good shape. Alternator and battery are co-dependant. A bad battery can kill a good alternator, and vice-versa.
 
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