Charging System Service Now Ford – Causes & Solutions

Adeel Amir

charging system service now ford

One of the most common defects in a Ford Ranger, F150, Bronco, or Fusion is the battery light turning on, followed by the “Charging System Service Now Ford” warning.

The good news is that I’ve previously dealt with this problem in my workshop, and it’s not as horrible as it sounds.

In this post, I’ll walk you through troubleshooting, diagnosing, and repairing a Ford car with the “charging system service now” Fault. Let’s get started.

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What Does charging system service now Ford Means on a Ford?

In layman’s terms, the charging system is the alternator and battery of a car. While your car is operating, the alternator charges the battery and supplies electricity to the electrical systems. When you receive this error number, it implies that something is wrong with your Ford’s charging system.

Reasons for Charging System Service Now

I discovered that the most typical reason for this issue is a defective battery, which might be a dying battery or a broken connection. The Battery Monitoring System (BMS) detects that the battery needs examination when it no longer holds a charge as effectively as it did before, indicating a failure.

The powertrain control module (PCM) will receive a notification from the Battery Monitoring System (BMS) indicating a problem with the charging system, and it will set this code at that point.

If you’ve had your battery tested and it still won’t charge, there might be another problem with your car.

99% of the time, I discovered that a defective battery caused the problem; nevertheless, because the charging system on a Ford includes other components, let’s look at other probable causes:

1. Faulty Alternator

The alternator may be failing and not charging the battery properly. Your battery will be unable to keep a charge if the alternator is not charging properly.

You may test this by using a multimeter to measure the voltage on the battery and compare it to what it would typically read when operating. I should mention that this is extremely unusual, but I have had automobiles come to me with an identical problem caused by a malfunctioning alternator.

2. Serpentine Belt (Drive Belt) Worn

The serpentine belt is a rubber belt that links the alternator pulley to the water pump pulley. If this belt breaks, strains, or comes off, your alternator may cease operating.

This is because the water pump’s pulley will be spinning but there will be nothing to power it.

3. Defective Alternator Wires

The wires that connect the alternator to the battery might get frayed as a result of wear and tear or rats chewing them. If this occurs, your car will be unable to charge and will show “Charging System Service Now” on the dashboard.

Understanding the Charging System in Your Ford

In any car, the charging system is in charge of keeping the battery charged while driving and giving electricity to the electrical system. Numerous critical components in a Ford work together to provide peak performance in this system. Understanding these components is crucial for spotting potential problems and dealing with them as soon as possible.

The Charging System’s Components

The battery, alternator, voltage regulator, and wiring are the primary components of a Ford’s charging system. The alternator creates electricity to charge the battery and deliver power to the electrical system, while the battery stores electrical energy for use when the engine is turned off.

The voltage regulator controls the alternator power and protects the battery from being overcharged or undercharged. The wiring connects all of these components and allows electrical energy to flow.

The battery is an essential part of the charging mechanism. When the engine is turned off, it is in charge of storing electrical energy and supplying it to the electrical system. Because a weak or dead battery might cause the charging system to fail, it is critical to check the battery on a regular basis and replace it as needed.

Another important component of the charging system is the alternator. It creates power to charge the battery and power the electrical system. A damaged alternator can cause the battery to discharge, resulting in a dead battery and a broken charging system. Dimming headlights, a whining noise from the engine, and a warning light on the dashboard are all signs of a failed alternator.

The voltage regulator controls the alternator’s output and ensures the battery is neither overcharged nor undercharged. If the voltage regulator malfunctions, it can lead to the alternator overcharging the battery, potentially causing damage to it and other electrical components.

A dead battery, dimming headlights, and a warning light on the dashboard are all symptoms of a failed voltage regulator.

The wiring in the charging system is essential for allowing electrical energy to flow between the battery, alternator, and voltage regulator.

Damaged or corroded wiring might cause the charging system to fail, thus it is critical to examine the wiring and replace any damaged or corroded wires on a regular basis.

How the Charging System Functions

The alternator creates power and transmits it to the battery when the engine is operating. The voltage regulator checks the charge of the battery and instructs the alternator to modify its output as needed. As long as the engine is running, it repeats this procedure to ensure that the battery is charged and the electrical system has enough power. However, if any of the charging system’s components fail, the entire system may fail.

In conclusion, the charging system in your Ford is an important component that guarantees your car has enough electricity to run. Understanding the charging system’s components and how they interact is crucial for spotting any problems and correcting them as soon as possible. Maintenance and inspections on a regular basis can assist in preventing charging system malfunctions and keep your car running smoothly.

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Ways to Troubleshoot Your Ford Charging System Service Now Ford

If you see the “Service Now” warning notice for your charging system, the first thing you should do is conduct some simple troubleshooting. However, before you begin, ensure that your Ford is parked in a safe and secure position and that the engine is turned off.

It’s critical to keep your vehicle’s charging system in excellent working order since it’s in charge of keeping your battery charged and powering your vehicle’s electrical components. A faulty charging system might result in a dead battery, leaving you stranded and in need of a tow truck.

Examining the Battery

The battery is the first thing to look at. Begin by evaluating the battery visually for signs of damage, corrosion, or swelling. Corrosion on the battery terminals can prevent the battery from charging correctly, thus cleaning the terminals on a regular basis is essential. Check that the terminals are tight and ensure that the connections are not corroded. It is recommended to replace the battery as soon as any damage or swelling is observed.

The voltage between the battery terminals should then be measured using a voltmeter. A completely charged battery should have a voltage of roughly 12.6 volts. If the voltage is lower, it may indicate a faulty battery that has to be replaced. If the voltage is greater, the battery may be overcharging, which can cause damage to the battery and other electrical components in your car.

Examining the Alternator

If the battery looks to be in good condition, the alternator is the next component to inspect. While the engine is operating, the alternator is in charge of charging the battery. While the engine is running, use a voltmeter to measure the voltage across the battery connections. The voltage should range between 13.5 and 15 volts. If the value is too low or too high, it might indicate a faulty alternator that needs to be replaced or repaired.

The alternator’s bearings, rotor, stator, and diodes are all susceptible to failure. If any of these components fail, the alternator will cease operating correctly, resulting in a dead battery and a “Service Now” sign.

Investigating the Voltage Regulator

If the battery and alternator appear to be in good working order, the voltage regulator should be checked next. The voltage regulator is in charge of controlling the alternator’s electrical output. If the regulator fails or malfunctions, the alternator may overcharge or undercharge the battery, resulting in a “Service Now” indication.

Depending on the make and model of your car, the voltage regulator may be situated within or outside of the alternator. If you’re having charging system problems, it’s critical to examine the voltage regulator, as it’s a typical source of those troubles.

To summarize, keeping your Ford’s charging system in excellent working order is critical to the correct operation of your vehicle. You may avoid costly repairs and keep your car operating smoothly by completing routine maintenance and troubleshooting as needed.

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How to Deal with Check Charging System Fault on Your Ford?

I propose that you first get your battery checked. If the condition is less than 55%, changing the battery will almost certainly resolve the problem.

Most Ford cars use AGM batteries, which are known for their durability and power, although they can experience a decrease in power over time. As a result, your car will not charge, and the message “Charging System Service Now Ford” will appear. When electronics like start-stop features start to malfunction, it is one of the best indicators that you need to replace your Ford battery.

Also, verify that the battery terminals are correctly tightened to prevent any loose connections. If the battery is fine, you can proceed to inspect the alternator and its wiring.

Can You Drive Your Ford with Charging System Light On?

I wouldn’t advise ignoring the alert since it is linked to the battery and charging system. You should promptly schedule an inspection for your Ford, and if a battery replacement is necessary, ensure that you acquire the correct size and type.

Final Thoughts

Understanding and maintaining the charging system is crucial for optimal vehicle performance as a Ford owner. We’ve spoken about the charging system’s components, how it works, and what the “Charging System Service Now Ford” warning message implies in this post.

In addition, we’ve discussed several critical measures you can take to repair and maintain your Ford’s charging system, as well as when you should seek expert assistance. Taking these precautions can keep your charging system healthy and your Ford running smoothly for many years.


What does it mean when it says service charging system?

If this warning signal illuminates while the engine is running, it indicates that there is a problem with the charging system, most likely that the battery has failed or the alternator has failed. If your car or truck won’t start, it might be due to a defective battery that can’t hold a charge.

Why does my Ford say to check the charging system?

What happens when the battery/check charging system light illuminates? When this indicator illuminates, it indicates that the car is functioning purely on battery power. If the problem persists and your charging mechanism fails, the battery will be unable to recharge and will quickly discharge, leaving you with a dead battery.

Is it safe to drive with a service battery charging system?

Don’t drive if your Service Battery System Light is illuminated.
If your car needs a new battery, has a malfunctioning alternator, or has a wiring problem, it might fail at any time. Make an appointment with the Casey’s Frontier Chevrolet Of Livingston service department right now.

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