Test the output terminal on the back of your alternator it should be the same as at your battery if it is more (engine running) or less (engine not running) by more then .2 of a volt check that wire for a burnt out fuseable link section or check underhood fuse box for a blown fuse (generally about 120amp fuse). allso unplug the regulator plug from your alternator and with your ignition key in the "Run" position (engine stopped) you should have atleast 1 if not 2 terminals (depends on aplication) in the plug end coming from your vehicals wiring harness powered. if not check fuses and these wires for breaks.
Alternator is defective and needs replacing.
You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.
alternator or bad wires
The alternator may not be recharging the battery .
Defective alternator.
Likely the battery or alternator, but probably the alternator
Only if something is wrong. Drive it to your local auto parts store and have them check the system. Most do it for free.
There is not an alternator indicator light on a Honda Pilot. If the alternator goes out, the battery will not stay charged.
Maybe your alternator needs replacing.
The battery light stays on when the alternator is over or under charging.
Alternator bad or wiring fault to alternator.
Alternator defective, or alternator belt broken or slipping.