How To Clear A P1299 Code ( 6 Important Information)

Unraveling the mysterious world of engine codes can feel like deciphering an ancient language, but fear not! In the automotive cryptic crossword, the P1299 code is your enigmatic adversary, lurking in the shadows of your vehicle’s diagnostics.

Picture yourself as the code-breaking detective, armed with wrenches and determination, ready to unveil the secrets hidden within your engine’s intricate tapestry.

So, grab your toolkit and join me on this expedition into the heart of vehicular mystery as we decode the elusive P1299—because who said car troubleshooting couldn’t be an exhilarating adventure?

How To Clear A P1299 Code
How To Clear A P1299 Code

How To Clear A P1299 Code

If you’re facing the dreaded P1299 code on your vehicle, fear not – resolving it is within reach. In this guide, we’ll walk you through the steps to clear the P1299 code and get your engine running smoothly again.

Understanding the P1299 Code:

The P1299 code, often associated with overheating issues, signals a potential problem in your vehicle’s cooling system. It’s crucial to address it promptly to prevent any long-term damage to your engine.

Diagnose the Issue

Before clearing the code, identify the root cause. Check for coolant leaks, inspect the thermostat, and ensure proper radiator function. This step is crucial for preventing the code from reappearing.

Use a Code Reader

Invest in a reliable OBD-II code reader to access and interpret the P1299 code. This tool provides insights into the specific issue triggering the code, allowing for a more targeted and effective resolution.

Fix the Underlying Problem

Once identified, address the underlying issue causing the P1299 code. This may involve replacing a faulty thermostat, fixing leaks, or addressing any cooling system malfunctions. Thoroughly follow manufacturer guidelines for accurate repairs.

Clear the Code

With the problem fixed, use your OBD-II scanner to clear the P1299 code. This step ensures that the issue has been successfully resolved. However, be vigilant and monitor your vehicle for any signs of recurring problems.

Preventative Measures and Common Misconceptions:

Regular maintenance and timely repairs are key to preventing the reappearance of the P1299 code. Contrary to common misconceptions, simply clearing the code without addressing the root cause can lead to recurring issues. Prioritize a comprehensive approach for lasting results.

Understanding P1299

Identify the DTC

The first step is to identify the Diagnostic Trouble Code (DTC) P1299. DTCs are alphanumeric codes that your vehicle’s onboard diagnostic system uses to communicate issues or malfunctions.

Access the Code

To understand P1299, you need an OBD-II scanner. This device plugs into your vehicle’s OBD-II port (usually located under the dashboard) and retrieves the DTCs stored in the vehicle’s computer.

Definition of P1299

P1299 is a specific DTC related to the Ford brand. It is often associated with the “Cylinder Head Overtemperature Protection Active” condition. This means that the engine control module (ECM) has detected that the cylinder head temperature is too high and activates a protection mechanism.

Possible Causes

Investigate potential causes for the overtemperature condition. This can include issues like a malfunctioning thermostat, a faulty coolant temperature sensor, a cooling system problem, or a problem with the cylinder head temperature sensor.

Inspect Cooling System

Check the cooling system components. Ensure that the radiator is functioning correctly, and there are no leaks in the cooling system. Inspect the coolant level and the operation of the water pump.

Check Sensors

Verify the condition of sensors involved, such as the coolant temperature sensor and the cylinder head temperature sensor. If these sensors provide inaccurate readings, it can trigger the overtemperature protection.

Thermostat Inspection

The thermostat regulates the flow of coolant through the engine. A malfunctioning thermostat can cause overheating. Inspect the thermostat to ensure it’s opening and closing as it should.

Addressing Issues

Based on the findings from the inspection, address and repair any issues discovered. This might involve replacing faulty sensors, repairing leaks, or replacing components like the thermostat.

Clearing Codes

After making necessary repairs, use the OBD-II scanner to clear the DTCs from the vehicle’s computer. This resets the system, and if the issue has been successfully addressed, the code should not reappear.

Monitor for Recurrence

Keep an eye on the vehicle’s performance and monitor for any signs of the issue recurring. If the problem persists, further diagnostics may be necessary.

Understanding and addressing DTCs like P1299 involves a systematic approach to identify and rectify the underlying issues affecting the vehicle’s performance.

If you’re not comfortable doing this yourself, it’s advisable to seek professional assistance from a qualified mechanic or technician.

How To Clear A P1299 Code

Tools and Materials

OBD-II Scanner:

Essential for reading and clearing diagnostic trouble codes (DTCs).

Socket Set:

Includes various socket sizes for loosening and tightening nuts and bolts.

Wrench Set:

Combination wrenches for different purposes.

Screwdriver Set:

Flathead and Phillips-head screwdrivers for various applications.

Pliers Set:

Needle-nose pliers, regular pliers, and possibly slip-joint pliers.

Jack and Jack Stands:

For lifting the vehicle safely.

Diagnostic Tools:


For testing electrical circuits and components.

Coolant Pressure Tester:

To check for leaks or pressure issues in the cooling system.

Timing Light:

Useful for checking and adjusting ignition timing.

Specialty Tools:

Torque Wrench:

For tightening bolts to specific torque values.

Radiator Pressure Tester:

Helps identify leaks or pressure issues in the radiator.

Coolant Hydrometer:

Measures the specific gravity of coolant to check its effectiveness.

Feeler Gauge:

For checking and adjusting valve clearances.

Safety Equipment:

Safety Glasses:

Protect your eyes from debris.


Protect your hands from dirt, chemicals, and sharp edges.

Shop Towels:

For cleaning and wiping.


Replacement Parts:

Depending on the issue, have replacement parts ready. This could include sensors, gaskets, hoses, etc.


If you’re working on the cooling system, have the appropriate coolant for your vehicle.

For keeping your workspace clean.

Always refer to your vehicle’s specific repair manual for any additional tools or materials recommended for your particular make and model. It’s also important to prioritize safety, so having the right safety equipment is crucial.

If you’re unsure about a specific tool or material, don’t hesitate to seek guidance from a professional or consult your vehicle’s manual.

How To Clear A P1299 Code

Step-by-Step Guide

Tools and Materials Needed:
OBD-II Scanner
Socket Set
Oil Filter Wrench
Oil Drain Pan
Jack and Jack Stands
Oil Filter
Engine Oil
Oil Drain Plug Gasket (if applicable)
Shop Towels

Gather Materials and Tools

Ensure you have all the necessary tools and materials listed above. Make sure your vehicle is on a level surface.

OBD-II Scan (Optional)

Use the OBD-II scanner to check for any diagnostic trouble codes (DTCs). Address any issues if codes are present.

Lift the Vehicle

Use the jack to lift the front of the vehicle and secure it with jack stands. Ensure the vehicle is stable and safe.

Locate the Oil Drain Plug

Consult your vehicle’s manual to locate the oil drain plug under the engine.

Position the Oil Drain Pan

Place the oil drain pan under the oil drain plug to catch the used oil.

Remove the Oil Drain Plug

Use the socket set to loosen and remove the oil drain plug. Allow the oil to drain completely into the pan.

Remove and Replace the Oil Filter

Use the oil filter wrench to remove the old oil filter. Before installing the new filter, apply a small amount of oil to the rubber gasket on the top.

Install the New Oil Filter

Screw on the new oil filter hand-tight. Avoid over-tightening.

Replace the Oil Drain Plug

Once the oil has drained completely, replace the oil drain plug. Ensure it’s tightened securely, and if applicable, replace the drain plug gasket.

Add New Engine Oil

Use a funnel to pour the recommended amount and type of engine oil into the oil fill cap. Refer to your vehicle’s manual for specifications.

Check Oil Level

Start the engine and let it run for a few minutes. Turn off the engine and check the oil level using the dipstick. Add more oil if necessary.

Inspect for Leaks

Look for any signs of oil leaks around the oil filter and drain plug. Tighten if needed.

Lower the Vehicle

Carefully lower the vehicle using the jack.

Dispose of Used Oil

Properly dispose of the used oil and oil filter at a recycling center or an auto parts store.

Record the Maintenance

Record the date and mileage of the oil change in your vehicle’s maintenance log.

Congratulations, you’ve successfully changed your vehicle’s oil! Always refer to your specific vehicle’s manual for any model-specific instructions or considerations. If you’re unsure or uncomfortable performing these tasks, it’s recommended to seek professional assistance.

Tips and Tricks

Read the Manual:

Always refer to your vehicle’s manual for specific instructions, recommended tools, and maintenance schedules. It’s your best guide for understanding your vehicle.

Safety First:

Prioritize safety. Use appropriate safety gear, work in a well-ventilated area, and follow proper lifting procedures when using jacks.

Organize Your Tools:

Lay out your tools and materials before starting. It saves time and helps you keep track of everything.

Take Pictures:

Before disassembling anything, take pictures. They can serve as a reference when reassembling and can be helpful if you need assistance.

Use Thread Locker Sparingly:

When using thread locker (like Loctite), use it sparingly. It’s meant to secure bolts, not make them impossible to remove later.

Anti-Seize for Bolts:

Apply anti-seize compound on bolts and nuts to prevent corrosion and make future removal easier.

Tighten in Stages:

When tightening bolts, especially those with multiple bolts like cylinder heads, tighten in stages and in a crisscross pattern to ensure even pressure.

Check Torque Specifications:

Use a torque wrench and check your vehicle’s manual for torque specifications. Over-tightening can lead to issues.

Keep it Clean:

A clean workspace is a safe workspace. Wipe down parts before removal and keep your tools organized.

Use a Magnet Tray:

When working with small bolts and nuts, use a magnetic tray to keep them from rolling away.

Invest in Quality Tools:

Quality tools can make a significant difference in the ease and precision of your work. Invest in good tools that will last.

Double-Check Everything:

Before finishing a task, double-check that all bolts are tightened, fluids are filled, and components are properly installed.

Use a Fluid Extractor:

For tasks like changing brake fluid or extracting oil, consider using a fluid extractor for a mess-free experience.

Learn from Mistakes:

Don’t be afraid to make mistakes, but learn from them. It’s part of the learning process, and it’ll make you a better DIY mechanic.

Patience is Key:

Automotive work can be challenging. Take your time, be patient, and if you’re feeling frustrated, take a break.

How To Clear A P1299 Code

Frequently Asked Questions

How often should I change my oil?

The frequency of oil changes depends on your vehicle and the type of oil used. Check your vehicle’s manual for the manufacturer’s recommendations.

What does the “Check Engine” light mean?

The “Check Engine” light indicates a potential issue with the vehicle’s engine or emission control system. It’s best to use an OBD-II scanner to retrieve diagnostic trouble codes for more information.

How can I improve fuel efficiency?

Regular maintenance, proper tire inflation, and smooth driving habits can improve fuel efficiency. Keep your vehicle well-tuned and follow recommended service schedules.

When should I replace my brake pads?

Brake pad replacement frequency varies, but a common guideline is to replace them every 20,000 to 60,000 miles. However, it’s essential to monitor brake pad thickness and listen for signs of wear.

Why is my car overheating?

Overheating can be caused by issues such as a malfunctioning thermostat, low coolant levels, a faulty radiator, or a failing water pump. A thorough inspection is necessary to identify the specific cause.

How do I jump-start my car battery?

Use jumper cables to connect the positive (+) and negative (-) terminals of the dead battery to a working vehicle’s battery. Start the working vehicle and let it run for a few minutes before attempting to start the dead vehicle.

What is the proper tire pressure for my car?

The recommended tire pressure can be found in your vehicle’s manual or on a sticker located in the driver’s side door jamb. It is essential to check and maintain the correct tire pressure regularly.

How do I check and top off my engine coolant?

Allow the engine to cool, locate the radiator cap, and check the coolant level. If needed, add coolant to the reservoir. Always use the recommended coolant type specified in your vehicle’s manual.

Can I use any type of oil in my car?

No, it’s crucial to use the oil type and viscosity recommended by your vehicle’s manufacturer. Consult your owner’s manual for the correct specifications.

What causes a rough idle?

A rough idle can be caused by issues such as a dirty air filter, malfunctioning spark plugs, a vacuum leak, or a problem with the fuel system. Diagnostic testing is necessary to pinpoint the exact cause.

How do I know when to replace my timing belt?

Timing belt replacement intervals vary by vehicle, typically ranging from 60,000 to 100,000 miles. Refer to your vehicle’s manual for the manufacturer’s recommendations.

How do I reset the “Maintenance Required” light?

The process to reset the “Maintenance Required” light varies by vehicle. Consult your owner’s manual for specific instructions, or look online for your car’s make and model.

How To Clear A P1299 Code


What is a P1299 code, and why is it important to address it?

The P1299 code is a diagnostic trouble code related to the engine’s temperature control system. It’s crucial to address it as it indicates a potential issue that could lead to engine overheating or inefficient cooling.

How do I know if my vehicle has a P1299 code?

Your vehicle’s onboard diagnostic system will trigger the Check Engine Light, signaling the presence of the P1299 code. You can use an OBD-II scanner to retrieve the specific code and identify the issue.

What are the common causes of a P1299 code?

The P1299 code is often caused by a malfunction in the cooling system, such as a faulty thermostat, coolant temperature sensor, or a malfunctioning cooling fan. Low coolant levels or air pockets in the cooling system can also contribute to this code.

Can I continue driving with a P1299 code?

It’s not recommended to drive with a P1299 code unresolved. Ignoring this code may lead to engine overheating, which can cause severe damage and result in expensive repairs.

How can I clear a P1299 code?

To clear a P1299 code, you need to address the underlying issue causing the code first. Once the problem is fixed, you can use an OBD-II scanner to clear the code and reset the Check Engine Light.

How do I troubleshoot and fix a P1299 code?

Start by checking the coolant levels, inspecting the thermostat, and testing the coolant temperature sensor. Ensure that the cooling fan is functioning correctly. If you’re unsure or unable to identify the issue, it’s advisable to seek professional help.

Can I reset the P1299 code without fixing the problem?

Resetting the code without fixing the underlying issue is not recommended. The code will likely reappear, and the unresolved problem may lead to further complications.

Is it possible to prevent the recurrence of the P1299 code?

Regular maintenance, such as checking coolant levels, replacing the thermostat as needed, and ensuring the cooling system’s proper function, can help prevent the recurrence of the P1299 code. Promptly addressing any cooling system issues is key to preventing this code from reappearing.

How long does it take to fix a P1299 code?

The time to fix a P1299 code varies depending on the specific issue causing the code. Simple issues like low coolant levels or a malfunctioning thermostat can be addressed relatively quickly, while more complex problems may require more time for diagnosis and repair.

Should I attempt to fix a P1299 code on my own?

A: If you have experience with automotive repairs and diagnostics, you may attempt to fix a P1299 code on your own. However, if you’re unsure or lack the necessary expertise, it’s advisable to consult with a qualified mechanic to ensure the issue is accurately diagnosed and properly resolved.


In conclusion, addressing a P1299 code requires a systematic approach and careful consideration of various factors. By focusing on the cooling system components, such as the thermostat, coolant levels, and the electrical connections, you can effectively troubleshoot and resolve the issue causing the P1299 code.

Regular maintenance, prompt identification of potential issues, and timely repairs are key to ensuring optimal engine performance and preventing further complications. Remember, a thorough diagnostic process and attention to detail will empower you to clear the P1299 code and keep your vehicle running smoothly.