P1632 code — how to fix error fast
Exploring the P1632 code can save potential driving hassles. Discover its importance for vehicle upkeep.
If you are dealing with an issue regarding the electrical system of your car, code P1632 can be one of the most common OBD2 readings. The code has to do with your car’s charging system, but you’ll need a more precise explanation of the full P1632 code meaning to fix it.
That’s why our team wanted to save you the trouble help deal with the code and figure out the possible causes that triggered it, as you’ll learn in this guide.
Why you can trust REREV’s OBD2 code advice: Our automotive expert researchers with experienced mechanics undertakes a thorough research methodology to deliver precise insights on OBD codes. Find out more about OBD2 codes research process..
What does the P1632 code mean?
The P1632 code stands for “Smart Alternator Faults Sensor/Circuit Malfunction.” This code is related to the charging system in the vehicle and indicates that there is a problem with the alternator or the sensor that monitors the alternator’s performance.
If left untreated, this can lead to a dead battery and potentially cause damage to other components of the vehicle.
Some of the symptoms of the code include a dead battery, dimming headlights, and difficulty starting the vehicle. If you notice any of these symptoms, it’s important to have your vehicle diagnosed as soon as possible to prevent further damage.
What causes the P1632 code?
There are several potential causes of the P1632 code. These can include a faulty alternator, a malfunctioning battery sensor, a damaged alternator wiring harness, or a problem with the vehicle’s computer system. Let’s take a closer look at each of these potential causes.
Faulty alternator
The alternator is responsible for charging the battery and providing power to the vehicle’s electrical system. If the alternator is faulty, it can cause the battery to not charge properly, which can lead to the P1632 code.
Malfunctioning battery sensor
The battery sensor is responsible for monitoring the battery’s performance and providing feedback to the vehicle’s computer system. If the battery sensor is malfunctioning, it can cause the P1632 code to appear.
Damaged alternator wiring harness
The wiring harness that connects the alternator to the vehicle’s electrical system can become damaged over time. This can cause the alternator to not function properly, which can lead to the P1632 code.
Problem with the vehicle’s computer system
In some cases, the code can be caused by a problem with the vehicle’s computer system. This can be caused by a faulty sensor or a problem with the computer itself.
Which car models does the P1632 code affect the most?
The P1632 code is most commonly found in Ford vehicles. However, it can also be found in other makes and models as well. If you own a Ford vehicle, it’s important to be aware of the potential for this code to appear and to have your vehicle regularly serviced to prevent problems from occurring.
For now, here’s a list of the most commonly affected vehicles by the P1632 code:
- Ford Mondeo: This vehicle is often affected by the code P1632 due to issues with a frequently failing alternator and wiring harness issues.
- Ford Focus: The Focus often suffers from the code due to problems with the computer system and charging system issues.
- Ford Kuga: This compact SUV is also affected by the code more than others, or at least that’s how it seems from the record of NHTSA complaints.
How to diagnose the P1632 code
Diagnosing the P1632 code can be a complex process that requires specialized tools and equipment. Here are some steps that may be required to diagnose the code:
Check the battery
The first step in diagnosing the code is to check the battery. This can be done using a multimeter to measure the battery’s voltage and amperage. If the battery is low on charge or has a dead cell, it can cause the P1632 code to appear.
Check the alternator
The next step is to check the alternator. This can be done using a voltmeter to measure the alternator’s output voltage. If the alternator is not providing enough voltage, it can cause the code to appear.
Check the wiring harness
If the battery and alternator are functioning properly, the next step is to check the wiring harness that connects the alternator to the vehicle’s electrical system. This can be done using a continuity tester to check for any breaks in the wiring.
Check the computer system
Finally, if all other potential causes have been ruled out, it may be necessary to check the vehicle’s computer system. This can be done using a diagnostic scanner to read the codes stored in the computer’s memory.
How to fix the P1632 code
Fixing the P1632 code will depend on the underlying cause of the problem. Here are some potential fixes for each of the potential causes:
Replace a faulty alternator
If the alternator is found to be faulty, it will need to be replaced. This can be done by a professional mechanic or by a skilled DIYer with the right tools and equipment.
Fix the battery sensor
If the battery sensor is found to be malfunctioning, it will need to be replaced. This is a relatively simple fix that can be done by a skilled DIYer.
Deal with alternator wiring issues
Finally, in case the wiring harness is found to be damaged, it will need to be repaired or replaced. At least this one is a bit easier and can be done for around $100.
How to prevent the P1632 code
The best way to prevent the P1632 code from appearing is to properly maintain the vehicle’s charging system. Here’s what you can do after you clear the code to keep it that way:
- Regularly check the battery
- Keep the battery terminals clean
- Look out for any signs of a failing alternator like weak lights or electrical problems
It’s also important to have the vehicle serviced by a professional mechanic on a regular basis to catch any potential problems before they become serious issues.
Our take
In conclusion, the P1632 code can be a serious problem for any vehicle owner. However, by understanding what causes the code and how to diagnose and fix it, you can now keep your vehicle running smoothly and avoid any potential problems down the road.
What problems does the P1632 code trigger in a car?
The code P1632 may indicate an issue with the battery’s charging system which may prevent you from properly starting the car next time you sit behind the wheel.
Is the code P1632 easy to fix?
Fixing the code P1632 can sometimes be as simple as replacing a damaged wire, or as complex as switching the alternator with a new one which should be performed by a trained professional.
How much does it cost to fix the code?
It costs anywhere from $100 to $500 to fix the code P1632, depending on the cause.
