Question about 2006 Chevrolet Cobalt

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My battery saver light came on then said to check charge system then died could it be the battery??

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Check alternator belt for tightness it may be slipping. with car running at battery voltage should be 14 to 14.2 volts. when car is off voltage at battery should be at least 13 volts or a bit higher. if you get 14 volts while running, at battery. and less than 13 volts at battery when it is off, replace battery. have a good day !!

Posted on Nov 12, 2010

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Posted on Jan 02, 2017

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ITS READING MESSAGE BATTERY SAVER ON


Your probably going to need to take to a dealer for this , I don't how much you know about modern automotive charging systems . Plus it would help to have a professional scan tool ! The charging system on you vehicle is computer controlled ! The engine control module (ECM) controls the generator through the generator L-terminal control circuit. The signal is a 5-volt pulse width modulation (PWM) signal of 128 Hz with a duty cycle of 0-100 percent. Normal duty cycle is between 5-95 percent. Between 0-5 percent and 95-100 percent are for diagnostic purposes. The following table shows the commanded duty cycle and output voltage of the generator:
The BATTERY SAVER ACTIVE message will display on the driver information center (DIC) when the vehicle enters a load shed 2 event. Refer to for load shed 2 setting criteria.
The electrical power management (EPM) system is designed to monitor and control the charging system and send diagnostic messages to alert the driver of possible problems with the battery and generator. This EPM system primarily utilizes existing on-board computer capability to maximize the effectiveness of the generator, to manage the load, improve battery state-of-charge (SOC) and life, and minimize the system's impact on fuel economy. The EPM system performs 3 functions:
It monitors the battery voltage and estimates the battery condition.


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It takes corrective actions by adjusting the regulated voltage.


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It performs diagnostics and driver notification
Load Shed 2 Start
--
Less Than 10.9 V
Battery has a net loss greater than 12 AH
Rear defrost, heated mirrors, heated seats cycled OFF for 50% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC.
You have a charging problem or battery problem !

Feb 27, 2015 | 2006 Chevrolet HHR

1 Answer

Battery saver comes on battery light wont start like low battery started 5 min before code p062f comes up


Since you give no make , model or year of vehicle, I will assume it is fairly new if it has a battery saver feature. New cars are programmed to shut down non essential components to conserve power to start a vehicle that has marginal voltage to start the engine. Seems your battery is dying and your car is warning you that it may not start if the problem is not attended to ... Have your electrical starting system checked. Battery alternator, and load check.. Replace battery or alternator if needed.

Feb 12, 2015 | Cars & Trucks

1 Answer

I have 2000 F-250 super duty with charging issues. Truck died on way to work. Put a new Ford alternator on it but still not charging. Took alternator to alternator shop to test. Tested good. Checked and...


Have the battery checked. There were a few years when Ford had an odd problem. The battery saver feature was designed to disconnect power draining equipment to leave you with enough juice to get the truck started. BUT it has been known to disconnect the charging system even at expressway speeds.

If the battery is weak enough to make the Alternator work too hard, the battery saver sees this as a power using problem and disconnects the charging circuit.

It is a sneaky problem and even using a battery charger the truck could be running and showing a charge, but disconnect the charger and it is a TIMED activation of the battery saver.. It activates after a few minutes and then your truck will discharge.

Another possibility is the plug-in for the small wires going to the alternator brushes. When you plug the plastic clip into the Alternator, the wires may not be sliding on the terminal. Often the wires ride up the plastic clip and fail to make contact with the terminal. In the store, they use their harness and clip and the terminal makes contact and works.

Oct 10, 2013 | Cars & Trucks

1 Answer

Battery saver


looks like alternator failure...start the car, then disconnect a battery cable, if it dies its something in the charging system.

May 16, 2013 | 2009 Chevrolet Impala

1 Answer

Keep charging battery an it dies


Sorry to say that it sounds like one of the cells in your battery has 'died'. It will show a full charge when sat on the bench but as soon as you put a heavy load (like the starter motor) on it it won't want to know. Only solution is a new battery.

Jul 07, 2012 | 2005 Chevrolet Cobalt

2 Answers

2004 ford explorer will not turn over with key but remote starter switch makes it turn over


Its a good possibility that the Anti-theft is interferring with the circuit. If you have an extra ignition key, use that in case the password chip in your regular FOB has detriorated.

There is a brake sensor which is on the upper brake pedal. It interlocks with the starter to prevent starting without having your foot on the brake pedal. Check your brake lights for operation. If the brake lights stay dark with your foot on the pedal, the switch is broke or knocked out of position. A common problem.

Next, there are small wires for the starter solenoid. You can use a test light on one removed wire and ground the test light to the vehicle, the other end in the small wire. Turn the keyswitch to start, with brake pedal pressed and see if it lights up. If it does light up, the starter solenoid may be bad.

Battery level. Ford Anti-theft and some say Battery-saver, can cause both starting and charging problems. A fully charged battery can be at 13.2V- 13.6V. When Ford systems detect low voltage it can activate the Anti-theft, battery-saver, and even disconnect the charging system to allow the battery to completely drain. In some cases the Anti-theft drops starter voltage to around 7V so the starter will not spin. Have the battery tested.

I know of 2004 trucks that were jump started and showed charging, then after 5-10 minutes they lost the charging system. Some people lost the charging system at 70MPH and drove until they stalled. All because of the automatic features built into the trucks. A new battery fixed the problem. Your problem could stem from this.

May 28, 2012 | 2004 Ford Explorer

1 Answer

2000 pathfinder battery draining


Sounds like your alternator is doing nothing-the car is running only off the battery. Have your charging system checked-does your battery light stay lit? If that bulb is burnt out, that may be why the charging system is not working. On some charging systems, that bulb is crucial for the alternator to work.
Engine off, a fully charged battery should measure 12.5 volts with a voltmeter. Engine idling, and the voltmeter at the same battery should be showing about 13.5 volts. This tells you the charging system is working.

May 13, 2017 | 2000 Nissan Pathfinder

2 Answers

2003 protege5 wont start unless jumped and dies after about 30 seconds.


Need to check battery condition first. Is it the original battery? If yes chances are it needs to be replaced. May have a dead cell or 2 & will not hold a charge. When it ran before this, was the check battery/charging light on? Also verify charging system is working correctly.

Jun 22, 2010 | 2001 Mazda Protege

1 Answer

Car died but now starts


Try cleaning the battery cables where they contact the battery. If that doesn't do the trick, most auto parts stores wil ltest your battery for free. Do both first before lookng into the charging system. Alternatively, Place an external battery charger on the battery and charge it up. If that fixes it  then test the charging system.

Dec 22, 2008 | 1999 BMW 318 ti

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