My battery light came on, I replaced the battery and had my alternator checked. The alternator checked fine (took to 3 different places). Why is battery light still on? How do I reset this?
Welcome to Fixya! Have you checked the Belt Tensioner? If the Belt is even Slightly lose it will cause the Alternator to not Fully charge the Battery causing the Battery light. If this is good try Disconnecting the Battery for a little while, and also theck the Battery Terminals for Corrosion. Reinstall the Battery cablea and Make sure they are good and tight. The light should turn off.
Sounds like either you got a bad alternator or that wasn't the problem to begin with. The ABS light came on because the system voltage was below 11 volts and the car died because the system voltage became to low for the computers to function. Now that you put a new battery in, the voltage is up and everything will work fine for awhile until the battery looses enough of its charge and the ABS light will come back on and the car will die. Sounds like the alternator that you put on is working but not good enough. Take it back and get another one.
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The voltage regulator is built into the alternator. If the wires in the alternator connector are good, the problem is in the alternator. Take it back to the shop.
#1 Check your ground or corrosion at battery terminals if OK try adding an additional ground strap or cable to body of vehicle make sure you clean surface that means remove paint where cable is grounded.
#2 If you have an aftermarket radio or sound system or anything aftermarket that is not original check that also.
Very important if terminals are not corroded splice both batt cables about 1" back and inspect under insulator for corrosion if there is any replace batt cables
Wouldn't be a fuse, but it seems as if the alternator is still not putting out normal power, or else your battery has a problem taking a charge. Better have the battery tested for a dead cell. also see what a voltmeter says about alternator output now. If you have an electrical problem in the wiring somewhere or in the alt. charging controls, then possibly one or more of the diodes in the alternator may got burnt out. That means the alternator puts out less power.
On some newer cars, the engine computer, pcm, controls the rate of charge of the alternator. So you have to be careful diagnosing -know how your system operates. That's why mechanics always ask for year, make, model, and engine size if applicable.
Hi Arkina, Have the voltage regulator inspected and checked. If that checks out fine, check the earth connections or have someone check for you. If you have a volt test meter, start the engine and connect the meter to the positive and negative battery poles, measuring the output. At idle the alternator should output about twelve to thirteen volts, increasing to about thirteen volts with an increase of engine speed. With lights and heated rear window on the output should be about thirteen and a half to fourteen volts. Regards John
had almost same proublem with my sons car ,after two alt and a battlater ,found a loose connection at starter tha was causing the proublem all is well now might want to check
the rectifire in the alternator is not good,it that which control the voltage, u must replace the rectifire,and possibly the regulator is not working in the alternator
CHECK ALL WIRES THAT GO TO ALTERNATOR.CHECK BATTERY BY TESTER( LOAD).CHECK WIRES FROM IGNITION SWITCH (YELOW) WITCH GO TO ALTERNATOR.AND CHECK GREEN RED WIRE WHITCH GO TO ALTERNATOR WITH IGNITION ON. IT SHOUD BE 12V AND WITH ENGINE RUNNING IT SHOUD SHOWS NOTHING.IF EVERY THINK OK - REPLACED ALTERNATOR.WITH EVERY THING OK VOLTAGE SUPOUS TO BE 13.8 - 14.5 V
You do need an alternator. Nissan has a campaign on Maxima alternator in certain years such as 96-98 I believe. Go to your friendly Nissan dealer abd have them punch your VIN number into the NNA net. they will know and that will tell them if your vehicle applies by the VIN. I have seen the alternator on fire. There was fire inside of the alternator. Have it checked or the car can catch on fire.
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