2003 hyundai santa fe lp tcu fuse keeps blowing

Anti-theft systems are designed to prevent your vehicle from being stolen. These systems are constantly evolving. An anti-theft system may also integrate a car alarm or it might be just an engine immobilizer. This may be for many reasons including a dead car battery that loses its key memory or a dead battery in your remote.

It could also be that your immobilizer chip is damaged in your key or the car door lock is damaged. Step 1: Check your key fob battery. Make sure the battery is installed correctly in your key fob. If the battery is correctly installed, replace it with a fresh battery and try again. Step 2: Check your door lock cylinder. If your car has been damaged in an attempt to steal it or break into it, the anti-theft system may have been engaged.

Check for damage to the lock cylinder itself or under the door handle where would-be thieves may have punched through with a screwdriver. If the lock is damaged, try using the passenger side cylinder if your car has one. Step 3: Check that you are using the proper key to start your car. The key you are using may not have the chip required to start your car. Step 1: Check for the anti-theft light. Step 2: Turn the ignition to the "on" position.

Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Step 3: Check the anti-theft light again. Step 1: Insert your key in the lock on the door.

Step 2: Turn the key. Hold the key in this position for 20 to 30 seconds. This lets the system know you have the correct key, and it can allow you to bypass the alarm system. Some vehicles recognize the key simply by turning the key back and forth in the door lock key cylinder. An anti-theft system that prevents your car from running properly is a nuisance, and while you may be thankful for it in the event of a crime, it is now causing you a great deal of inconvenience, which these steps have hopefully helped you resolve.

If your car still won't start, you should consult with a professional from YourMechanic to determine if there is another issue that is preventing your car from starting. The most popular service booked by readers of this article is Electric Problems Inspection.

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Our certified mobile mechanics perform over services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools.

Our certified mobile mechanics make house calls in over 2, U.Did your car suddenly became really slow on acceleration and at the same time, it seems like it will not rev past RPM while the engine light is flashing on your dashboard? However, why does this happen and how expensive will it be to repair my car? You may think. In this article, I will teach you everything you have to know about the function called limp home mode, to make sure that you will be able to fix your car as soon as possible in a painless way.

For exampleYour engine control unit is detecting that your turbo boost pressure is 2. Overboost may damage your pistons or other internal parts fast.

2003 hyundai santa fe lp tcu fuse keeps blowing

In the video below, you will get in-depth information about what limp mode is. The video is specific for truck diesel engines, but the video will give detailed information for all car models.

The purpose of the limp mode function is to get you to the workshop in the safest way without damaging any engine components on the way to the workshop.

Different car manufacturers design different kinds of limp modes to save your engine. If you experience all of these symptoms, your car is for sure in limp mode and it has to get fixed as soon as possible. Below, you will find the most common things that usually cause the limp home mode. As you see, I only mention the most general issues. The reason for this is that limp mode could be caused by a lot of different engine components in your engine bay.

Therefore, the solution for this is to read the trouble code memory with an OBD2 scanner to find the problem before you are replacing any engine parts! When the engine control moduletransmission control module or brake control unit ABS detects a problem in the engine, transmission or with the brake system, it will store a trouble code in your DTC memory. If one of the control units decides that the problem is dangerous for the engine or transmission, it will put the car into limp mode.

Therefore, limp mode could be caused by a lot of different things.

2003 hyundai santa fe lp tcu fuse keeps blowing

Because of this, every time when the limp mode is active, there will be a stored trouble code in the trouble code memory. Therefore, the best solution to fix the limp mode without replacing the wrong parts is to find out which this trouble code is. People are often telling you that they had the same characteristics in their vehicle five years ago. The problem with the limp mode is that you can get the same characteristics with a lot of different faults.

You will only end up wasting your money on parts that were not faulty in the first place. It is straightforward to read the DTC memory with a good scanner and find out the real solution to why your car has gone into limp mode. You could either drive your car to a friend or a mechanic to get help to read your DTC memory; it will probably not cost much money, and you will get a real answer to your problem.

The process to connect an OBD2 scanner is pretty simple. First, you have to locate the OBD connector, generally found under your steering wheel. I recommend attaching a car battery charger while you are doing this job to avoid any damages to the electrical system.

If you think you need a new car battery, you can check out the best ones in this article at ReviewJam. If your car battery is good and you have a car battery charger connected, turn the ignition on and follow the manual with the OBD2 scanner.

Blowing fuse to PCM, TCM, ECM and fuel pump

One thing that we strongly recommend, is to purchase a good OBD2 scanner to read your trouble codes at home by yourself.

There are a lot of cheaper scanners on the market that will do the job, and it could be an excellent investment instead of taking it to your mechanic all the time. If you do not have an OBD2 scanner at home, you could either let a workshop read the trouble codes from your car or consider purchasing a scanner for your vehicle.Ad vertisements.

Here you will find fuse box diagrams of Hyundai Santa Feandget information about the location of the fuse panels inside the car, and learn about the assignment of each fuse fuse layout and relay. Cigar lighter power outlet fuse in the Hyundai Santa Fe is the fuse F1 in the Instrument panel fuse box. The fuse box is located in the engine compartment left-side.

How to check the fuses? How to replace a blown fuse? Why do car fuses blow? Types of automotive fuses. Hyundai Santa Fe TM; The location and function of fuses in cars produced at other times may differ. Table of Contents. Fuse box location. Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the fuse box on your vehicle, refer to the fusebox label.

Fuse box diagrams. Learn more: How to check the fuses? We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. Ok Privacy policy.Corrosion or damage due to moisture is one of the main reasons for ECM failure.

Corrosion can enter the ECM through the wiring harness and moisture can enter by a failure in the seals in the ECM itself. This happens over a period of time 5 to 10 years due to the ECMs exposure to the elements. The electronic fuel solenoid is also a main reason for failure in the ECM. The solenoid can cause a short in the ECM due to corrosion in the solenoid or the wire running from the solenoid to the ECM harness. The electronic fuel solenoid is located at the top of the fuel pump.

The solenoid seems to fail due to corrosion as fast or faster then the ECM. Toll-Free: Email: info jballelectronics. Your satisfaction is guaranteed and backed by warranty and our dedicated staff of engineers and technicians.

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Find out more about J-Ball Supreme Service. The third thing that can cause failure in the ECM is the Injector wiring harness or the sensor wiring harness. Once again corrosion or breaks in the internal wiring in the harness can cause a short in the ECM or corrosion can enter the ECM through the wiring harness. Again this is caused by exposure to the elements. Another issue that can cause failure in the ECM is poor grounding. This can be the result of loose or corroded ground wires to the battery or the frame.

This is especially problematic in the Celect Plus model.

2003 hyundai santa fe lp tcu fuse keeps blowing

Replacing the starter with the wrong model starter is becoming a big problem with the Celect Plus ECMs. Many starter rebuilders will bypass the override sensor in the starter.

The override sensor regulates the voltage going to the ECM so when the override sensor is bypassed you will get voltage problems in the ECM and it can generate fault codes or other problems. If you only started having problems with your ECM after installing a starter then the starter is most likely the root of your problem.

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Dead cells in batteries can cause failure in the ECM. Many times a battery is left in the rig long after a cell has died. This affects the grounding in the battery. If the vehicle has been jump started recently and the cables were connected improperly this can cause a spike in your ECM and cause it to short out. A bad jump can also blow out 2 amps which are located between the ECM and the firewall. Arc welding on the frame can blow out the ECM as well as lightning strikes. This is not very common but it does happen from time to time.

If your check engine light is on then you should be able to read a fault code from your ECM. The fault codes should help identify where the problem is originating from. You can also check the voltage where the wires come into the ECM harness with a voltmeter.Joe answered 9 years ago. There is something in the AC electrical system causing a problem, could be the compressor itself, the pressure switch, or even the head unit controls.

Best bet is to obtain a good service manual and look for the troubleshooting section, electrical issues can be tough to resolve. Jeff answered 9 years ago.

Car Heater and A/C Problem, Hyundai Tiburon Blower Motor Relay Location, Blower Motor Resistor?

SteveSwa12 answered 4 years ago. I have a Sonata and it is doing the same thing so if you figure it please let me know cause I am doing the same starting with switches and relays first.

Mine cools real good for about 20 minutes and the all of a sudden the fuse blows?

2003 hyundai santa fe lp tcu fuse keeps blowing

Stuart answered 2 years ago. My mechanic thinks it's the low pressure switch going to start with that one and replace it tomorrow will let you know if that solves the problem. Another mechanic seems to think it's the clutch. Since the clutch is 2 years old I'm going to try and replace the precious where its first. Robban answered about a year ago.

Would need to learn why it keeps happening. Mark answered about a year ago. Field coil inside the AC compressor. Costs as much as the compressor. Get new compressor. I just had my girlfriend's car inspected today and they replaced the fuel guage fuse which corrected the problem for about an hour and it went again. Any suggestions on how to correct this? Got a Hyundai sonata. Visor got in the way.The engine control module ECMalso commonly referred to as the engine control unit ECU or powertrain control module PCMis one of the most important components found on virtually all modern vehicles.

The ECM takes the information from the engine's various sensors and uses that information to calculate and tune engine spark and fuel for maximum power and efficiency. The ECM plays a crucial role in newer vehicles, where many of the essential functions of the car are controlled by the ECM.

When the ECM has any issues, it can cause all sorts of problems with the vehicle, and in some cases even render it undrivable. A bad or failing ECM may produce any of the following 5 symptoms to alert the driver of a potential problem.

The Check Engine Light usually illuminates when the computer detects a problem with any of its sensors or circuits. There are cases, however, where the ECM illuminates a Check Engine Light mistakenly, or when there is no issue present.

Have a mechanic scan the computer for trouble codes to diagnose whether the issue is with the ECM, or elsewhere on the vehicle. Erratic engine behavior may also indicate a bad or failing ECM.

A faulty computer may cause the vehicle to intermittently stall or misfire. The symptoms might come and go and not appear to have any sort of pattern to their frequency or severity. Engine performance issues are another symptom of a possible problem with the ECM. If the ECM has any issues, it may throw off the timing and fuel settings of the engine, which can negatively affect performance.

A faulty ECM may cause the vehicle to experience a reduction in fuel efficiency, power, acceleration. If the ECM fails completely, it will leave the vehicle without engine management control, and will not start or run as a result.

The engine may still crank, but it will not be able to start without the vital inputs from the computer. Car-starting problems are not exclusively caused by the ECM, so it's best to get a complete diagnosis by a professional technician to accurately determine the cause.

Bad fuel economy may occur from a failing ECM. A faulty ECM disallows your engine from knowing how much fuel to burn in the combustion process. Typically, the vehicle consumes more fuel than it should in this situation. The ECM plays a vital role in engine performance.

Any issues with it can cause major problems with the overall functionality of the car. As the computer systems found on modern vehicles are quite sophisticated and complicated, they can also be difficult to diagnose.

Common Reasons for Failure in Engine Control Modules

The most popular service booked by readers of this article is Vehicle Engine Electrical Inspection. Our certified mobile mechanics perform over services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools.

Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. Vehicle Engine Electrical Inspection Cost.

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Service Location. Home Articles. The statements expressed above are only for informational purposes and should be independently verified.

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Please see our terms of service for more details. Excellent Auto Repair Ratings.Avoid a trip to the mechanic by trying to troubleshoot problems yourself in your Hyundai Santa Fe. Air conditioning problems are quite common, and can often be quite simple to diagnose and even fix. Take a few easy steps to try and determine the cause of the air conditioning problems.

See if the problem is as simple as a blown fuse. If the temperature controls on the dashboard seem to work correctly but have no effect on the air, then this is likely the problem. The fuse box in a Hyundai Santa Fe is located on the side of the dash to the left of the steering wheel. Pry off the fuse panel cover.

Replace the blown fuse with one of equal amperage to avoid damaging the electrical system. Check the control panel if the controls do not work at all. Find the control panel by prying off the top instrument panel around the air conditioning temperature controls. Unscrew four screws, one in each corner, and remove the temperature control panel. Unplug four electrical connectors and one vacuum hose to the control panel. Listen for the blower motor while adjusting the controls. Get to the blower motor in your Hyundai Santa Fe by first disabling the airbags.

Unscrew the glove box and remove it. Unscrew and remove the blower motor wire harness found directly behind the blower motor. Unscrew three screws holding the blower motor into place and then remove the motor. Check the coolant levels. The coolant reservoir is found under the hood at the very front of the vehicle. It is white and plastic. Open the cap and shine a flashlight into the reservoir. Make sure the coolant level is less than the full line but more than the low line. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Step 1 See if the problem is as simple as a blown fuse. Step 2 Pry off the fuse panel cover.

Step 3 Check the control panel if the controls do not work at all. Step 4 Unscrew four screws, one in each corner, and remove the temperature control panel. Step 5 Listen for the blower motor while adjusting the controls.


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