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The Ultimate Guide to Renault Scenic Df045 Fault 85: Repair and Maintenance Advice


Renault Scenic Df045 Fault 85: What It Means and How to Fix It




If you own a Renault Scenic 2, you may have encountered a parking brake problem that triggers a fault code DF045. This code indicates a redundant brake switch signal incoherent, which means that the switch on the parking brake lever is not working properly or sending conflicting signals to the parking brake module. This can cause the parking brake warning light to come on and prevent the parking brake from releasing or engaging correctly.




Renault Scenic Df045 Fault 85



In this article, we will explain what causes Renault Scenic Df045 Fault 85, how to diagnose it, and how to fix it.


What Causes Renault Scenic Df045 Fault 85?




There are two main causes of Renault Scenic Df045 Fault 85: a faulty parking brake lever switch or a faulty wiring connector under the driver seat.


The parking brake lever switch is located on the handle that you pull to activate or deactivate the parking brake manually. This switch sends a signal to the parking brake module to let it know whether the lever is in the on or off position. If this switch is damaged, worn out, or misaligned, it can send incorrect or inconsistent signals to the module, resulting in a fault code DF045.


The wiring connector under the driver seat is where the parking brake module connects to the vehicle's electrical system. This connector can become corroded, loose, or damaged due to water ingress, wear and tear, or physical impact. If this connector is compromised, it can cause a poor or intermittent connection between the module and the switch, resulting in a fault code DF045.


How to Diagnose Renault Scenic Df045 Fault 85?




To diagnose Renault Scenic Df045 Fault 85, you will need a diagnostic tool that can read and clear fault codes from the parking brake module. You can use a generic OBD2 scanner or a specific Renault scanner for this purpose.


Once you have connected the scanner to the vehicle's diagnostic port, follow these steps:


  • Turn on the ignition and scan for fault codes.



  • If you see DF045 along with DF047 (manual command), it means that the problem is likely with the parking brake lever switch.



  • If you see only DF045 without DF047, it means that the problem is likely with the wiring connector under the driver seat.



  • Clear the fault codes and test drive the vehicle to see if they come back.



How to Fix Renault Scenic Df045 Fault 85?




To fix Renault Scenic Df045 Fault 85, you will need to replace or repair the faulty component that is causing it. Depending on whether the problem is with the parking brake lever switch or the wiring connector under the driver seat, follow these steps:


  • If the problem is with the parking brake lever switch, you will need to remove the center console and access the switch. You can either replace the switch with a new one or try to adjust it if it is misaligned. Make sure that the switch clicks when you move the lever and that it sends consistent signals to the module.



  • If the problem is with the wiring connector under the driver seat, you will need to lift up the seat and locate the connector. You can either replace the connector with a new one or try to clean it and secure it if it is corroded or loose. Make sure that there is no water ingress or damage to the wires and that they make good contact with each other.



After fixing the faulty component, clear the fault codes again and test drive the vehicle to see if they are gone. If not, you may have another issue with your parking brake system that requires further investigation.


Conclusion




Renault Scenic Df045 Fault 85 is a common parking brake problem that can affect your vehicle's safety and performance. It is caused by a faulty parking brake lever switch or a faulty wiring connector under the driver seat. You can diagnose it with a diagnostic tool and fix it by replacing or repairing the faulty component. By doing so, you can restore your parking brake function and avoid further damage or inconvenience.


How to Prevent Renault Scenic Df045 Fault 85?




Renault Scenic Df045 Fault 85 is a preventable problem that can be avoided with proper care and maintenance of your parking brake system. Here are some tips to prevent this fault code from occurring:


  • Regularly check the condition and operation of your parking brake lever switch and replace it if it shows signs of wear or damage.



  • Avoid using the parking brake lever excessively or unnecessarily, as this can cause the switch to malfunction or wear out faster.



  • Keep the wiring connector under the driver seat clean and dry, and protect it from water ingress, physical impact, or corrosion.



  • Inspect the wiring harness and connectors for any signs of damage or loose connections, and repair or replace them if needed.



  • Use a diagnostic tool to scan for any fault codes related to your parking brake system and clear them as soon as possible.



What are the Benefits of Fixing Renault Scenic Df045 Fault 85?




Fixing Renault Scenic Df045 Fault 85 is not only important for your vehicle's safety and performance, but also for your convenience and comfort. Here are some benefits of fixing this fault code:


  • You will avoid getting a failed MOT test due to a faulty parking brake system.



  • You will prevent further damage or malfunction of your parking brake module or other components.



  • You will restore the proper function and operation of your parking brake system, which can help you park safely and securely on slopes or uneven surfaces.



  • You will eliminate the annoying and distracting parking brake warning light from your dashboard.



  • You will improve your fuel economy and reduce your emissions by avoiding unnecessary drag from a stuck or partially engaged parking brake.



Conclusion




Renault Scenic Df045 Fault 85 is a common parking brake problem that can affect your vehicle's safety and performance. It is caused by a faulty parking brake lever switch or a faulty wiring connector under the driver seat. You can diagnose it with a diagnostic tool and fix it by replacing or repairing the faulty component. By doing so, you can restore your parking brake function and avoid further damage or inconvenience. You can also prevent this problem from happening again by following some simple tips to maintain your parking brake system. By fixing Renault Scenic Df045 Fault 85, you will enjoy many benefits such as passing the MOT test, saving fuel, and reducing emissions.


How to Test Renault Scenic Df045 Fault 85?




If you have fixed Renault Scenic Df045 Fault 85, you may want to test your parking brake system to make sure it is working properly and safely. Here are some ways to test your parking brake system after fixing the fault code:


  • Use a diagnostic tool to scan for any remaining or new fault codes related to your parking brake system and clear them if necessary.



  • Drive your vehicle on a flat surface and apply and release the parking brake several times using the lever and the button. Listen for any unusual noises or vibrations from the parking brake module or the wheels.



  • Park your vehicle on a slope and engage the parking brake using the button. Check if the parking brake warning light is off and if the parking brake holds the vehicle securely without slipping or rolling.



  • Park your vehicle on a level surface and release the parking brake using the button. Check if the parking brake warning light is off and if the parking brake releases completely without dragging or sticking.



  • If you notice any problems or abnormalities with your parking brake system during these tests, you may need to recheck your repair work or consult a professional mechanic for further assistance.



What are the Alternatives to Fixing Renault Scenic Df045 Fault 85?




If you are unable or unwilling to fix Renault Scenic Df045 Fault 85 yourself, you may consider some alternatives to get your parking brake system back in order. Here are some options to consider:


  • You can take your vehicle to a Renault dealer or a reputable garage and have them diagnose and fix the problem for you. This may cost you more money and time, but you will get a professional service and a warranty for their work.