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Check Charging System lite comes on. New battery, system tests good. Gage needle varies + to _. Turn ignition off, restart no system lite. What could cause this problem?

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Hello and have you tested the voltage at the battery with a voltmeter should be right around 13.5 to 14.3 volts if it less then this at anytime the check charging will come on to tell you the voltage is low output to the battery witch if it does drop the problem is usually the voltage regulator. Also the reason if it is on and then you shut it off and restart the light goes out is because you have just pulled a bunch of power from the battery to start the vehicle so the regulator opens up to full charge to replace the power loss. but could be a problem once the voltage gets back to normal the regulator doesn't know what voltage it needs to maintain so it just stops charging instead if trickle charging

Posted on Dec 14, 2016

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1 Answer

I bought a new alternater and battery the alternater isnt charging the battery what else could be wrong


You have to check for B+ voltage at the heavier gage wire on the back of the alternator , could have a blown fusible link , plus the smaller gage wires at the connector that plug into the alternator mite have B+ voltage as well . You could look at a wiring diagram , that would show you . http://www.bbbind.com/free_tsb.html .Plus watch Test and troubleshoot your charging system Battery alternator testing

Jan 11, 2017 | Cars & Trucks

1 Answer

05 Escalade EXT Charge sys lite, gage needle varies + to _, Dash lite flickers. New Bat. Sys. checked CK good by Mech. Bat Cable tightened. Still have problem. Any suggestions?


Gage cluster issue, could be a bus ground issue too. These are not easy to fix and usually you send the cluster out to a third party shop to be checked and rebuilt.

Dec 14, 2016 | Cadillac Escalade Cars & Trucks

1 Answer

When i stopped all dash board lights came on and now wont start and has no power to anything


When vehicle stalls, the dash lites may come on.
Make sure battery has a full charge, battery connections all good. Make sure charging system is working properly.
Use a test lite and check voltage to fuse circuits in fuse box. Some fuses circuits are hot all the time, some go hot with the key on. Right now, I can't tell if you have problem with battery--battery connections--charging system--fusible links--ignition switch or what? You need to do some testing. Let us know what you find?

What is year--make--model?

Mar 31, 2016 | Cars & Trucks

1 Answer

Why won't it start?


The word BATTERY is telling you the charging system isn't charging the battery ! Probably . Check for B+ voltage on the heavier gage wire on the alternator , if no B+ voltage there is a open fusible link Coming from the battery cable connected to the starter solenoid . The smaller gage wires , one goes to the PCM - engine computer an the other is a ground . You battery is dead too , from running the vehicle without charging system not working . Charge the battery or replace it , have it test etc...

Jan 10, 2016 | 2004 Dodge Neon

1 Answer

What is causing the battery to drain?


Running the car will drain the battery it if it's not charging ! An if your charging light is on it isn't charging ! Did you check power an grounds on the alternator ? There is a single heavier wire on the back of the alternator, this should have battery voltage ! You may want to take this to a ASE certified repair shop !
Functionality
With the ignition switch in the RUN position, voltage is applied through the warning indicator I circuit 904 (LG/RD) to the voltage regulator. This turns the regulator on, allowing current to flow from battery sense A circuit 35 (OG/LB) to the generator field coil. When the engine is started, the generator begins to generate alternating current (AC) which is internally converted to direct current (DC). This current is then supplied to the vehicle's electrical system through the output (B+) terminal of the generator.
Once the generator begins generating current, a voltage signal is taken from the generator stator and fed back to the regulator S circuit 4 (WH/BK). This voltage feedback signal (typically half the battery voltage) is used to turn off the warning indicator.
With the system functioning normally, the generator output current is determined by the voltage of the A circuit 35 (OG/LB). The A circuit 35 (OG/LB) voltage is compared to a set voltage internal to the regulator, and the regulator controls the generator field current to maintain the correct generator output.
The set voltage will vary with temperature and is typically higher in cold temperatures and lower in warm temperatures. This allows for better battery recharge in the winter and reduces the chance of overcharging in the summer.
Battery Positive Output (B+) Circuit 38 (BK/OG)
The generator output is supplied through the battery positive output (B+) terminal on the back of the generator to the battery and electrical system.
I Circuit 904 (LG/RD)
The I (ignition) circuit 904 (LG/RD) is used to turn on the voltage regulator. This circuit is powered up with the ignition switch in the RUN position. This circuit is also used to turn the charging system warning indicator on if there is a fault in the charging system operation.
A Circuit 35 (OG/LB)
The A (battery sense) circuit 35 (OG/LB) is used to sense battery voltage. This voltage is used by the regulator to determine generator output. This circuit is used to supply current to the generator field (rotor). The amount of current supplied to the rotor will determine generator output.
S Circuit 4 (WH/BK)
The S (stator) circuit 4 (WH/BK) is used to feed back a voltage signal from the generator to the regulator. This voltage is used by the regulator to turn off the charging system warning indicator. The S circuit is fed back externally on external mounted regulator generators.
Visual Inspection Chart Mechanical Electrical
  • Battery case, posts, hold-down clamp, cables and connections
  • Generator drive (serpentine) belt for condition and tension to make sure there is no slip between the belt and the pulley. For additional information, refer to Section 303-05 .
  • Battery charge
  • Generator pulley
  • Battery junction box (BJB)Mega Fuse
  • Battery junction box fuse:
    • 11 (20A)
  • Central junction box (CJB) fuse:
    • 30 (30A)
  • Circuitry
  • Charging system warning indicator
  • Cables
  1. Check the operation of the charging system warning indicator lamp (instrument cluster). Normal operation is as follows:
    • With the ignition switch OFF, the charging system warning indicator should be OFF.
    • With the ignition switch in RUN and the engine off, the charging system warning indicator light should be on.
    • With the engine running, the charging system warning indicator light should be off.
  1. Verify the battery condition. Refer to Section 414-01 .
Normal Charging System Voltages and Charging System Warning Indicator Operation Ignition Switch Position A Circuit 35 (OG/LB) S Circuit 4 (WH/BK) I Circuit 904 (LG/RD) Generator B+ Circuit 38 (BK/OG) Battery Engine to Battery Ground Charging System Warning Indicator Operation OFF 12 volts 0 volts 0 volts 12 volts 12 volts 0 volts Off RUN-engine off 12 volts 0 volts 1-3 volts 12 volts 12 volts 0 volts Illuminated RUN-engine running 13-
15 volts 1/2 battery voltage 13-
15 volts 13-
15 volts 13-
15 volts 0 volts Off
  1. If the customer concern is verified after the initial inspection, refer to the Symptom Chart to determine which tests to carry out.
    • The charging system warning indicator is on with the engine running (the system voltage does not increase)
    • Circuitry.
    • Voltage regulator.
    • Generator.
    • GO to Pinpoint Test B .
    Your whole problem is the alternator is not charging , a couple tests with a volt meter would tell you !

Aug 16, 2015 | 2001 Ford Expedition

4 Answers

Car wont crank makes noise all lights and accessories come on when i turn the ignition only thing that happens is that my head lights go off


Hi you are having a battery problem, you need to check your charging system. get a jump start then drive your car to an auto parts store that will test your battery and charging system. If your battery is to low your car will not continue to run, after the jump start. if you have a battery symbol lite on (when your car is running)the dash board don't drive it untill you can get the battery fully charged

Feb 02, 2014 | 2004 BMW 325i

1 Answer

1993 cadillac. I'm having trouble with the charge light coming on, only at night causing the headlights to go off and on. been pulled over 3 times now. The battery is new, had alternator tested and te


Could one WHAT be overcharging the other WHAT???

To understand the problem you must first understand that the car runs off of the BATTERY. The job of the alternator is to replace the power that the car uses back to the battery. The car DOES NOT operate off of the alternator (many people do not get this). The charge light comes on when the charging voltage from the alternator is lower than the voltage that is available at the battery posts (that is why the charge light is ALWAYS on when the ignition switch is on but the engine is not running.

If the CHARGING SYSTEM had been PROPERLY tested, you would have seen this in the tests. If you removed your alternator to have it tested, this does not test the charging system in the car.

This can be caused by a failure or high resistance in ANY PART of the charging system. This includes not only the battery and the alternator, but also all of the connecting cables, wires and the ignition switch.

If the battery and alternator are both good, then the problem is most likely a loose or badly corroded battery cable. However, high resistance in the ignition switch circuit to the alternator can also cause this type of problem. The charging system in your car needs to be PROPERLY tested to pinpoint the location of the fault.

Dec 03, 2011 | 1993 Cadillac DeVille

1 Answer

Battery not charging. had charging system tested. all okay except alternator. removed alternator and had tested. replaced alternator. system still not charging.


Check the connections and the fusible link. A fusible link is an inline fuse in the wiring. You will need a multimeter to test and troubleshoot. Check that when the ignition is on, that you are getting 12 volts to the lead to the alternator. The ignition switch controls turning on the charging system.

Good luck, jim

May 01, 2011 | 2003 Chrysler Town & Country

4 Answers

My car just clicks when I try to start it but it doesn't start. It will jumpstart but once I turn it off it want restart


Hi!!
The clicking sound is a sign of a drained battery. Check your battery cables for loose or corroded terminals, if everything OK, jump start the vehicle and take it to an AutoZone, Checkers or similar auto parts store to have your Starting/Charging System checked. They perform this test free of charge.
Good Luck!! Don't forget to rate this post!!

Sep 21, 2010 | 2008 Ford Fusion

2 Answers

The needles on the battery gage will not go back


you have a short running into your cluster wiring

Feb 25, 2010 | 2003 GMC Envoy

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