How to Fix Rolls Royce Dawn Key Fob Problems
There aren't many vehicles that generate the kind of involuntary gasp the Rolls-Royce Dawn does. Even with the cloth roof down, it's stunning.
It comes with all the usual gadgets and features, including motorised doors that can be shut with the touch of a button. Umbrellas are hidden in the openings of the doors. It also comes with a smooth V12 engine that can be driven at a near-silent pace.
Dead Coin Battery
A dead coin battery is the most common reason of a key fob not locking or unlocking the doors. It is also the easiest to repair as it can be replaced in just a few moments. You should use a brand new coin battery that has the same voltage, size and specifications as the first to avoid a defective battery. Do not expose a battery to clean water, such as rain, clean tap-water or even soda, as it could cause damage to the internal chip. If the key fob isn't working, try reprogramming the key using an original key or visit an authorized dealer.
Water damage, Receiver Module issues, Signal Interference, and a bad electronic chip are a few other reasons that the key fob might not function.
Poor Battery Contact
The button cell battery that is located inside the key fob of your Rolls Royce Dawn can lose its charge and stop functioning. Replacing the battery is a fast and easy fix. Make sure you replace the battery with one that is the same size and voltage. If you're not sure which type to purchase, try asking an employee at your local auto parts store.
The corrosion of the battery terminals of a Rolls Royce Dawn can also prevent it from starting. This problem occurs with older batteries, especially if they haven’t been charged for a long period of time. You can use a multimeter to test the conductivity to see if your battery terminals have corrosion. Set the meter on the ohms scale, and then place one of the probes against the negative terminal of your Dawn. Then, touch the other probe to a metal part of the chassis or engine. The reading should be near zero ohms.
Another indication of a weak battery in your Dawn is clicking noise when you try 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 function. This means that the battery cannot supply enough charge.
Water Damage
If you accidentally dropped your Rolls Royce Dawn key fob in the sink or left it sitting in the rain, it is likely suffering from water damage. The chip's electronic circuit is protected by rubber sealings but prolonged exposure to clean water or salty ocean water could cause it to stop functioning.
Moisture can cause corrosion over time, which can lead to faulty circuitry that can cause issues with the security and ignition system in your car. It can also interfere in the signal transmission, leading to the failure of remote keyless systems. The key fob can disable your vehicle or activate the immobiliser system, leaving you without a vehicle.
To avoid this occurring, take off the key fob and wipe it with a damp cloth to dry any moisture that remains. You can also place the key in a bag that is airtight with uncooked silica gel or rice packets to to absorb any moisture that remains. Once dry the key should function normally again. If not, the issue is most likely with the 12 volt battery, or the receiver module, which requires changing the program to fix it.
Receiver Module Issues
If you've already tried a different battery, but the remote key fob doesn't work, it may be time to replace the receiver module. This is the component that receives the radio frequency signals from the key fob and converts them into commands for your car's electronics. If the chip in the module is damaged, it won't be capable of communicating with other modules within the vehicle. You'll need a scanner to identify the issue. It will reveal what the computer on the vehicle is telling it.
The metal clips that secure the battery in the key fob of your Dawn complete the circuit and keep it in the right place. These clips can corrode and make the battery contacts useless. If you decide to replace the battery, make sure it's the exact size and voltage to the previous one. It could cause damage to the chip inside the key fob.
Water damage could be the cause for an electronic key fob that suddenly stopped working. The key fob can be damaged by water if dropped into water or immersed in soapy water. It is possible to clean the key fob using electronic cleaners or isopropylethanol however, you will need to replace the chip in case it becomes damaged.
Signal Interference
Occasionally, your Dawn key fob may not function due to signal interference. Interference can be caused by objects in the vicinity of your vehicle, weather conditions and transmitters operating on the same frequency band. A malfunctioning receiver module could also cause interference. If key of rolls royce The Key Lab to reduce the interference, you may be able to use an extender of range or signal booster.
It is crucial to replace the button cell battery on your Dawn key fob if it is drained. The battery must be the same voltage, size and type as the original battery to ensure your vehicle remains compatible with the key fob. If your key fob starts to fail intermittently, it may indicate the chip is damaged.
If you have tried all of the above, but your key still won't unlock or lock, then it's time to contact locksmith. A reliable locksmith can help you with any Rolls Royce key fob or key programming needs, including reprogramming and replacement. They'll be able to give you a quote for the work that is needed. You can ask the locksmith for their rates and credentials prior to hiring them.
Dead 12 Volt Battery
The 12 volt Battery in your Rolls Royce Dawn provides high current to start the engine as well as for all accessories and onboard computers. The battery will not function when it is not working or if the flow of current is interrupted by corrosion on the terminals of the battery or the ground connection.
A multimeter can be used to check the conductivity of your Dawn battery. To do this, disconnect the negative cable from the battery, and then connect one probe of the multimeter to the ground wire of the battery and the other probe to any exposed metal part of your vehicle's engine, chassis or body. The reading should be zero ohms or close to it.
If the results were not satisfactory then replace the battery with a new one with the same voltage, size and specifications. Make sure you fully charge the replacement battery before using it. The most frequent cause of a faulty battery is internal degradation due to age. However, it could also occur as a result parasitic draw or if your vehicle has been parked for a long time.