How to Fix Rolls Royce Dawn Key Fob Problems
There are few automobiles that can generate the kind of gasp that the Rolls-Royce Dawn does. Even with the top of the cloth down it's an amazing car.
It is equipped with all the classic features - such as motorised doors that close at the press of a button, and umbrellas that are hidden inside the door opening. It has an incredibly smooth V12 engine that can be driven in near silence.
Dead Coin Battery
The most common reason for a key fob that does not unlock or lock the doors is a dead battery. It's also one of the most simple problems to fix since it can usually be replaced in a few minutes. Make sure to use a new coin battery with the same size, voltage, and specifications as the original to avoid a defective battery. Also, never use the battery that has been exposed to clean water (rain, clean tap water, or even soda) as this may harm the internal chip. If the key fob still isn't working you can try reprogramming it with an original key, or visit an authorized dealer.
Other reasons why the key fob may not be working are water damage, receiver Module issues, Signal Interference and a bad electronic chip.
Contact with the Battery is Poor
The button cell battery in the key fob of your Rolls Royce Dawn can lose its charge and stop functioning. Replacing the battery is a quick and simple fix. Be sure to replace the battery with one of the same size and voltage. If you're not sure which kind to buy, ask an employee at your local auto parts store.
The corrosion of the battery terminals in the battery terminals in a Rolls Royce Dawn can also hinder the battery from starting. This problem is common with older batteries, especially if they haven’t been charged for a long period of time. To check if your battery terminals aren't corroded, you can use a multimeter to check the conductivity. Set the meter to Ohms, and place one probe against the negative terminal of your Dawn. Then, touch the other probe to a bare metal part of the engine or chassis. The reading should be close to zero ohms.
Another symptom of a weak battery in your Dawn is clicking noise when you attempt to start the engine. This is because accessories, the starter solenoid and the engine require low current while the starter solenoid needs high current.
Water Damage
If you dropped your Rolls Royce Dawn key fob in the sink or left it sitting in the rain, it's probably to be suffering from water damage. The electronic chip is protected by rubber seals but prolonged exposure to sea salt or clean water could cause it to stop working.
Moisture can cause corrosion over time, leading to malfunctioning circuits that can cause issues with the ignition and security system of your vehicle. It can also interfere with the transmission of signals, causing the remote keyless system to fail. The key fob may lock your car, or activate the immobiliser, leaving you in the dark.
To avoid this to happen, remove the key fob and wipe it clean with a damp cloth to dry any remaining moisture. You can also put the key in a bag filled with uncooked silica gel or rice to absorb any moisture. After drying, the key should work normally again. If not, the issue is most likely due to the 12 volt battery, or the receiver module, which requires changing the program to fix it.
Receiver Module Issues
If you've tried a new cell and the remote keyfob still does not function, then it may be time to replace the receiver module. The receiver module receives radio frequency signals from your key fob, and converts them into commands for the vehicle's electronic system. If the chip in the module is damaged, the module will not be able communicate with the other modules of the vehicle. To diagnose the problem you'll require an OBD scanner to determine what the on-board computer is telling it to do.
The battery that is located inside the key fob of your Dawn has metal retaining clips that keep it in place and complete the circuit. The clips may corrode and render the battery contacts ineffective. When replacing the battery, make sure that it's the exact same size and voltage as the original. It could cause damage to the chip inside the key fob.
If the key fob stopped working suddenly it could be a sign that it was damaged by water. This could happen if the key fob is dropped into water or soaked with soapy water. It is possible to clean the key fob with isopropyl alcohol or electronic cleaners, but if you find that the chip in the key fob is fried you'll have to replace it.
Signal Interference
Signal interference could cause your Dawn keyfob to cease functioning. rolls royce phantom key could be caused by objects that are within the vicinity of your vehicle or by weather conditions, or transmitters operating on the same frequency band. A faulty receiver module can also cause interference. If you are not able to eliminate the interference, you may consider using an extender or signal booster.
If the button cell battery is completely drained then it's time to replace it. To ensure compatibility with your vehicle, the battery must have the same voltage and size as the original. If your key fob ceases to fail intermittently, it could indicate that the chip has gone out of service.
If you've tried the previous methods but are still unable to get your key to unlock or lock, it's likely time to contact an experienced locksmith. A reputable locksmith can assist you with all of your Rolls Royce key fob and key programming requirements. This includes reprogramming or replacement. They can give you an estimate for the work required. Be sure to inquire with the locksmith about their fees and credentials prior to hiring them.
Dead 12 Volt Battery
The 12 volt battery in your Rolls Royce Dawn is responsible for supplying high electrical current, not only to start the engine, but also to power all accessories and on-board computers. If the battery is dead or the flow of power to the engine is disrupted due to corrosion of the battery terminals or ground connection, all electronic components on board including the remote keyless system will stop working.
To determine the condition of your Dawn battery, you can perform the test of conductivity using a multimeter. To do this, take off the negative cable of the battery and touch one probe of the Multimeter to the grounding wire of the battery. Then, touch the other probe of the Multimeter to any exposed metal parts of your vehicle, like the chassis, body, or engine. The reading should be close to zero in ohms.
If the results aren't satisfactory If the results are not satisfactory, you can replace the battery with a new one of the same voltage, size and specifications. Make sure you fully charge the new battery before using it. The most frequent cause of the battery failing is internal degeneration due to the aging process. However, it could be caused by parasitic draw or if your car has been in a garage for a long period of time.