How to Fix Rolls Royce Dawn Key Fob Problems
There are very few vehicles that generate the kind of gasp that the Rolls-Royce Dawn does. Even with the roof made of cloth down, it's an impressive car.
It comes with all the standard gadgets - crowd-pleasers like motorised doors that close at the push of a button and umbrellas concealed in the door opening. It also comes with an ultra-smooth V12 engine that can be driven with a whisper.
Dead Coin Battery
The most common reason for a key fob that does not unlock or lock the doors is a dead battery. It is also among the most simple problems to fix since it can be replaced in a few minutes. To avoid a damaged coin battery, ensure that you choose a replacement battery that has the same voltage, size and specifications as the original one. Do not expose a battery to clean water, like rain, clean tap water or even soda, as it could cause damage to the internal chip. If the key fob doesn't function after reprogramming it using an original key, visit an authorized dealer.
Damage to the Receiver Module, water issues, Signal Interference and a damaged electronic chip are all other reasons for why the key fob might not work.
Poor Battery Contact
The button cell battery in the key fob for your Rolls Royce Dawn may lose its charge. Replacing the battery is a simple and simple fix. Be sure to replace the battery with one of the same size and voltage. If you're not sure which type of battery to buy, you can consult someone at your local auto parts store.
rolls royce key cover of the battery terminals in a Rolls Royce Dawn can also stop it from beginning. This is a frequent issue with older batteries, particularly if they haven't been charged for a long period of. A multimeter can be used for assessing the conductivity of your battery to determine if your battery terminals have corrosion. Set the meter on Ohms, and place one probe against the negative terminal of your Dawn. Then, touch the other probe to a plain metal part of the chassis or engine. The reading should be close to zero ohms.
Another sign of a weak battery in your Dawn is the sound that you hear when you attempt to start the engine. This is because the starter solenoid as well as other components require high electric current, while the engine requires a lower current to work - this means that the battery will not be able to provide enough charge.
Water Damage
Water damage could occur if you accidentally drop your Rolls Royce Dawn Key Fob in the sink or leave it in the rain. Although the electronic chip inside is protected by rubber seals prolonged exposure to clean tap water or salty ocean water could cause it to stop working properly.
Moisture can cause corrosion over time, leading to faulty circuitry, which can lead problems with the security and ignition system of your vehicle. It also can interfere with the transmission of signals, which can lead to the malfunction of remote keyless systems. The key fob could disable your car or activate the immobiliser, leaving you in the dark.
To avoid this, take the key fob from its case and wipe it down with a a damp towel to remove any moisture. You can also put the key in a bag containing uncooked silica gel or rice to absorb any moisture. Once the key has dried, it should function normally again. If not, the issue is most likely due to the 12 volt battery or the receiver module, which will require changing the program to fix it.
Receiver Module Issues
If you've already tried a different battery, but the remote key fob isn't working, it could be time to replace the receiver module. This component receives radio frequency signals from your key fob, and converts them into commands for the vehicle's electronic system. If the chip inside the module is damaged the module won't be able communicate with the other modules of the vehicle. You'll require a scanner to identify the issue. It will show you what the computer in the vehicle is telling it.
The battery inside the key fob of your Dawn has metal clips that hold it in place and complete the circuit. These clips are susceptible to corroding and render the battery contacts ineffective. When replacing the battery, ensure that it is the exact same size and voltage as the original. It could damage the chip in the key fob.
If the key fob stops working abruptly it could be a sign that it was damaged by water. The key fob may be damaged by water if dropped into water or soaked in soapy water. You can clean the key fob using electronic cleaners or isopropylethanol however, you will need to replace the chip if it's damaged.
Signal Interference
Signal interference can cause your Dawn keyfob to cease functioning. The interference could be caused by objects that are within the vicinity of your vehicle or weather conditions, as well as transmitters on the same frequency band. It could also be caused by a malfunctioning receiver module. If you're unable to cut down on interference, you may consider using an extender or signal booster.
If the button cell's battery is completely depleted, it's time to replace it. The battery must be the same voltage, size and type as the original battery to ensure your vehicle is compatible with the key fob. If your key fob is intermittently working, the chip could be fried.
If you've tried all the above and your key doesn't seem to be unlocking or lock, then it's time for an expert locksmith. A reputable locksmith will assist you with all of your Rolls Royce key fob and key programming requirements. This includes reprogramming and replacement. They will be able to provide you with a price estimate for the work that is required. Request the locksmith's rates and credentials prior to hiring them.
Dead 12 Volt Batterie
The 12 volt battery inside your Rolls Royce Dawn provides high current to start the engine as well as for all onboard computers and accessories. If the battery is in a dead state or the flow of current to the engine is interrupted due to corrosion on the battery terminals or ground connection, all on-board electronics including the remote keyless system will stop functioning.
A multimeter can be used to determine the conductivity of your Dawn battery. To do this you must disconnect the negative cable from the battery and then touch one probe of the multimeter to the ground wire of the battery, and the other probe to any exposed metal component of your vehicle's engine, body or chassis. The reading should be near zero Ohms.
If the results weren't satisfactory then replace the battery with another battery with the same size, voltage, and specification. Make sure that the replacement is fully charged before you use it. The most common cause of the battery failing is internal degradation caused by old age, but it can also be due to parasitic draw, or if the car has been left parked for long periods of time.