But this time it only lasted it before at 30 seconds before the message went away. What Is the Cause of the Charging System Problem? Join both parts to the positive battery post. It is common to go through four to six generators, (aka alternator, but that term is copyrighted by Chrysler), in the life of the vehicle. Performing the repair yourself, however, may cost less. FlexOffers, Cool Automotive Products and Tool Recommendations, Read AUTO REPAIR ARTICLES sorted by topic, What is electronic brake force distribution (EBD), Reduced engine power message on Buick Encore,Chevrolet Trailblazer, Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. If the battery light comes on as youre driving in the daytime, it means there is enough time for you to figure out the solution since you arent relying on electrical devices such as headlights. farynhite; Feb 27, 2017; General Tahoe/Yukon Discussion Forum; Replies 1 Views 6K. On the other hand, the computer or regulator operates as a traffic cop to regulate the alternators output. Ensure that the multimeter clips are in contact with the battery posts rather than the tester clips. You must log in or register to reply here. Nov 01, 2015 GMC Cars & Trucks. When we noticed this the battery voltage was fluctuating all over the place. A Tech2, the computer used by the dealerships for these trucks, can see the health of the battery and alternator. If that turns out ok then hook up a millimeter to the battery while the car is running. I'm going to get the alternator tested soon hopefully and dive in deeper if need be. I could go on and on about the system, it does work and i have left it intact, i also install a overdrive pulley on the alt for the summer months to compensate for the extended idleing and dual ac on max that we experience here in the ca desert. I'm going to try and pull the alternatir this weekend and have it tested. Chevy Volt Service High Voltage Battery System (Fix) Chris Walter 81 subscribers Subscribe 375 57K views 5 years ago This is a POTENTIAL fix if you have this warning. real" fix that I have seen is to replace C. Check the alternator belt and make sure it's tight and in good condition. He said Trying to fit in 05 Tahoe. As mentioned earlier, the light is a sign that the alternator has stopped charging the battery, thereby preventing your cars electrical system from acquiring the complete power it desires. Plugin your car diagnostics scanner (We recommend the iCarsoft i900 or the Autel MS300) Turn on the ignition, followed by the scanner. The Fora platform includes forum software by XenForo. Therefore, a good mechanic should be consulted to avoid further damage or disappointment. The service battery charging system on your Chevy Silverado is a warning message that appears on the dashboard screen, and it indicates low charging, damaged battery, faulty alternator, rusting of terminals, malfunctioning ECU, old equipment, excessive usage, and damaged electric cables. The BCM sets a targeted generator output at startup. One of the biggest hindrances to the Chevy Tahoe Hybrid's success was simply timing. Also Read: Car Stutters When Starting (How To Fix). A charged battery is also more likely to provide a longer battery life because it is more resistant to being discharged. Read full answer. Reset the ECU. Set the Battery Tester to its ammeter function. He Loveswriting about Automotive Diagnostics and Repair, Trouble codes, Buyer guides for various car parts and accessories, and lots more. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Models: 2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2007 GMC Sierra, Yukon, Yukon XL with Active Fuel Management System Vortec GEN IV 6.0L V8 Engine (VIN Y -- RPO L76) and HYDRA-MATIC 4L70-E Transmission (RPO M70) This bulletin is being revised to remove the 4L60-E transmission and add condition information. Siouxicide 11-01-2009, 11:02 AM Position the Battery Tester towards its voltmeter settings. Several cars tend to show service battery charging system in any of the following ways; The charging system helps to keep your battery charged and offers electrical energy for your car radio, lights, and other electrical components when the vehicle is in motion. Thread starter ToddEdge; Start date Aug 22, 2013; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. Have the battery cables checked for resistance and voltage drop. It helps to turn mechanical energy from the crankshaft into electrical power. Battery is probably nearing EOL. The high speed cooling fan, rear defogger and HVAC high speed blower is activated Battery temperature is less than 0C (32F). 62.171.175.232 Disclaimer: Links on this page pointing When doing this, disconnect the battery so no power is available to the wire. Many modern GM made vehicles have a battery saver feature, this includes the Chevy Suburban. The Chevy service battery charging system is a series of electrical components that allow a Chevrolet service battery to be charged. In voltage reduction mode, the ECM targets generator output voltage 13 volts. 30 Great Deals out of 504 listings starting at $7,999. help. If there is a problem with the battery charging system, a SERVICE BATTERY CHARGING SYSTEM message will appear in the Driver Information Center (DIC) and/or the charging system light comes on. Jan 24, 2013 #9 If they move even a little bit, that could cause an issue. If you click them and I will definitely post the answer. the alternator/ generator. Corroded Wires & Connections are another reason why the service battery charging system indicator comes on. Starter. For a better experience, please enable JavaScript in your browser before proceeding. I had to jump off my truck to get GMs new Electrical Power Management (EPM) system is pretty smart and very fuel efficient. Please refer to CarGurus Terms of Use. LTZ. napa and Audo zone check the battery, starter, and The charging system includes a battery charger, a ground cable, and a power supply. The easiest way to check if your alternator is functioning is by running the car and disconnecting the batterys positive terminal. For a better experience, please enable JavaScript in your browser before proceeding. service battery and charging system appears and disappears on warning monitor needle comes to discharge and charge and battery lite on dash comes on, new battery same problem. Here are a few things to fix your charging system warning light: A. Try to stop by a well-secured and bright area that is bright and employ the towing services. Update: had the battery and alternator tested at autozone and both passed. Disclaimer: Links on this page pointing The BCM relies on input from a 3-wire battery current sensor. Whenever your vehicle refuses to start, it is caused by a bad battery that couldn't hold a charge. Started out as a charging system service message and after the voltage dropped to the bottom of the gauge . wanted to prepare my self for what Turns out it was the battery. just a couple of ideas, [SIGPIC][/SIGPIC]11' Silverado CCSB Z71/18x9 DC-2/3" Daystar leveling kit/Flowmaster Super 40/5% Tint. Should I disconnect the battery of my Tahoe Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. I will when i take it to an auto store they hook it up and say everything looks fine with the It's the other end of the ground cable on the engine block. when i take it to an auto store they hook it up and say everything looks fine with the battery. To solve your vehicle charging system issue, you should check it yourself, and you should do it the right way as well. If it is less than 9 volts or so then the battery is bad. it to auto zone. Do NOT make this mistake. Therefore, you should take it to your mechanic, who can check the alternator voltage. The BCM will command Fuel Economy Mode when it measures air temperature to be at least 32F but less than 176F, and the battery current is less than 15 amps but greater than -8 amps, and the SOC is greater than or equal to 80 percent. Proceed to attach the terminal ends to the battery, with black going to the negative and red to the positive end. Virtually all AutoZone within the USA can check your alternator, starter, or when your battery is not charging. Set on volts DC, you should have 13.5-14.5 volts. This only happens every couple of days or every other. The battery charging system is integrated into the computer in todays vehicles. Think there is one. A test can be done to measure the voltage between the battery poles, check the . This morning the "Service Charging System" message came on and the battery light - Answered by a verified Chevy Mechanic . Add to that the RVC will turn down the charge voltage when it senses high bat temps and than when the bat drops in voltage the RVC system will crank the alt back to max output to bring it back to charged parameters. call it a generator. Service battery charging system also indicates that the vehicle cannot travel far before it halts due to a lack of electrical power. Darel Stays on a few seconds to a minute or 2 and goes off. The cost of fixing service system failure in your car depends on the component in the charging system that requires fixing. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. If it reads up to 9.6 volts at 21C, it means the battery has good capacity. If your Chevy Malibu shows "service battery charging system," it means your Chevy has a harmful problem and needs maintenance as soon as possible. Spoke with Multiple GM dealers and they have never . well. The only way to determine if the system is in Fuel Economy Mode (besides observing the criteria), is to view the current mode on a scan tool. You can email the site owner to let them know you were blocked. Late production 2007 Silverado 1500 with 5.3 engine. If there is any, repair them. The body control module (BCM) and engine control module (ECM) communicate with one another over a data bus to determine how much field current to deliver to the generator based on electrical needs and current engine RPM. The Chevrolet service battery charging system is a system that monitors and charges the service battery when the car is not in use. 1596 Technical Service Bulletins (TSBs) have been issued for the 2007 Chevrolet Tahoe. The alternator, surpentine belt, idler pulley . Therefore, if the water pump stops working, it will cause the engine to overheat, thereby leading to severe damage and costly repairs. The action you just performed triggered the security solution. If not then the alternator is the problem. A ground battery charging system allows the battery to be constantly topped off and will constantly be charging. Most times, service charging battery system messages are caused by a malfunctioning ECU. 2008 Chevrolet Silverado - 5.3L/4x4/Extended Cab/LT. So when it comes up with a service battery or service charging system message, it gives you some pretty good information on whats wrong. In older vehicles, there would have been a regulator. The message seems to only come on while the truck is idling or moving at slow speeds (like when I drive down my muddy driveway or stopped at a light). Today while sitting parked in my 2012 Chevy Impala LS 83,000 miles, "the service battery charging system", "battery light", and "battery saver active" notifications came on. Typical electrical systems run at 13+ volts with the engine running. Any work done to the truck recently? ENGINE CRANKS BUT WILL NOT START, CHARGING SYSTEM LIGHT ON, SERVICE BATTERY CHARGING SYSTEM MESSAGE . Service batteries are used to provide power to certain electrical devices in a business or organization. Arrange the load control knob towards the right side to enable the ammeter to release up to half of the batterys cold-cranking amps. Occasionally the red battery icon on the dash comes on and in the message center I get "Service Battery Charging System". Additionally, the device may need to be re-configured to use the battery. Replaced 1. Service battery charging system 40 Answers. ( see pic). As the owner of a 2008-2013 model year Chevrolet Tahoe or GMC Yukon, or 2009-2013 model year Cadillac Escalade, Chevrolet Silverado LD or GMC Sierra LD hybrid 2-mode vehicle, your . The BCM commands sulfation mode if it sees charging voltage dip below 13.2 volts for 45-mins. it looked fine. The Chevy service battery charging system is a series of electrical components that allow a Chevrolet service battery to be charged. Message On My 2007 Tahoe 'Service Battery Charging System' - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Please refer to CarGurus Terms of Use. Most alt charging is computer controled on newer trucks . . If the battery '11 LTZ, born Aug 2010, Fairfax, KS. You are using an out of date browser. One way to fix service battery charging is to check the voltage and current of the battery. These trucks have a smart charging system and will provide only the charge required under the current load condition. With the engine off they do not flicker so I want to say the battery is good. You are using an out of date browser. Theres a chance that you left your headlights on or other parts on, draining your battery. Disclaimer: Links on this page pointing Again, the voltage regulator helps to keep the battery fully charged. . Two suggestions that may or may not solve your problem, but I think theyre good suggestions nonetheless: 08 denali xl 6.2 had a similar problem but when the "service bat charge sys" and "red light" illuminated the volt gauge was stable and low. Before you proceed with anything, you have to first ensure that the car battery is in a good state and completely charged. 2. when i have a battery issue i call around to auto part stores to see who has the equipment to test the battery to determine if the battery is the problem. Well, even new things can go bad quickly sometimes. The vehicle has had no issues since. Next I would go to the belt, two fuses, tensioner, and check for trouble codes. The BCM determines system voltage is less than 11 volts or greater than 16 volts. and rev up engine to approx. I recently had my engine rebuilt and i am now getting the message "service the battery charging system". Below are some of the reasons why the service battery charging system come on: Often, the alternator is at the root of the service battery charging system indicator. The BCM indicates there is a system voltage range concern. Thank you for all your I will When we noticed this the battery voltage was fluctuating all over the place. Then, position the multimeter selector switch towards the DV volt position. If you click them and They have a device that puts a lode on it for no more than 10 seconds. the alternator. I just bought a 2014 Chevy Cruze with 30,000 miles. battery while the car was on. I monitored closely thereafter, 10 to 20 minutes later voltage climbs back to normal. The first time it came up it lasted for about 40 mins before it went away. . Also, check if the harness connector that holds the alternator is much secure. First, wear protective gear and follow this procedure to test the system components. This is on a 2008 Tahoe LTZ with 125K miles. If anyone has any ideas I'm all ears. Alldatadiy.com offers redrawn diagrams as well as factory diagrams. When the service battery charging system light comes on, it means that there is an issue with the charging system, often because the battery has become faulty or the alternator has ceased functioning. The battery stores electrical energy; hence it cranks the engine to ignite the car and provides current to the parts whenever the engine is not in motion. 6L80 Transmission Life Expectancy [All You Need To Know], Will a Bad Fuel Injector Throw A Code [Explained]. First make sure that there is no excess corrosion on the battery terminals, and check to make sure it doesn't look like it has been leaking acid. I had the old battery checked and replaced shortly after I bought the truck a couple of months back since it had trouble starting. Performance of the truck doesn't seem to be hurt in any way however the voltage gauge doesn't stay super consistent while driving. Good luck. Road trip today I notice my voltage is low. I had the battery and charging system checked and all are up to specification. A constant charging system maintains a set voltage, regardless of the amount of power being drawn. It may not display this or other websites correctly. today the "service battery charging system" message come on. You'll then touch the positive side of the voltmeter to the positive battery wire. If there are no issues with the alternator or battery, you can inspect the other components of the battery charging system for any probable issues. June 29, 2018 at 5:32 pm #1783238. I've never gone to start the truck and had a dead battery so I want to say the alternator is doing its job. Do not worry, because we have the answers to your questions. With both terminals connected, you will ideally look for a figure of around 12.6 volts or more.