How to Fix Rolls Royce Dawn Key Fob Problems

Few cars can elicit the kind of awe-inspiring gasp that the Rolls-Royce Dawn can. Even with the cloth roof down, it's still an impressive car.

It is packed with all the typical devices and features, including motorised doors that can be shut by pressing the button. Umbrellas are concealed in the door's openings. It is equipped with a smooth V12 engine which can be driven in complete silence.

Dead Coin Battery

The most common reason for a key fob that does not unlock or lock the doors is a dead coin battery. It is also the simplest to fix as it can be replaced in a few minutes. To avoid a damaged coin battery, always choose a replacement battery that is the same size, voltage and specification as the original one. Also, do not use batteries that have been exposed to clean water (rain, clean tap water, or soda) as this may harm the internal chip. If the key rolls royce fob does not work after reprogramming it with an original key, you can visit an authorized dealer.

Other reasons that the key fob may not be functioning include Water Damage, Receiver Module issues, Signal Interference and an Electronic Chip that is damaged.

Poor Battery Contact

The button cell battery on the key fob for your Rolls Royce Dawn may lose its charge. It is simple to replace the battery. However, make sure that you replace it with a new battery that is the same voltage and size. Contact the auto parts store if are not sure which type to buy.

Corrosion on the battery terminals in a Rolls Royce Dawn can also prevent it from beginning. This problem occurs with older batteries, especially if they haven’t been charged for a long period of time. Multimeters are a good tool to test the conductivity to determine 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 plain metal part of the engine or chassis. The reading should be near zero ohms.

Another indication of a weak battery in your Dawn is the sound that you hear when you try to start the engine. This is due to the accessories, the starter solenoid and the engine require low voltage while the starter solenoid requires high current.

Water Damage

If you dropped your Rolls Royce Dawn key fob in the sink or left it in the rain, it is likely suffering from water damage. Although the electronic chip inside is protected by rubber seals, prolonged exposure to pure tap water or salty ocean water may cause it to cease functioning properly.

Over time the moisture in the air can cause corrosion, resulting in faulty circuitry that can cause problems with the car's security and ignition systems. It could also affect signal transmission, which can cause the remote keyless system to fail. The key fob can disable your vehicle or activate the immobiliser system, leaving you without a vehicle.

To prevent this from to happen, remove the key fob and wipe it down with a damp cloth to dry any moisture that remains. You can also place the key in a bag filled with uncooked silica gel or rice to absorb any moisture. Once the key has dried it should function as expected again. If not, the problem is most likely due to the 12 volt battery or receiver module, which needs reprogramming to fix.

Issues with the Receiver Module

If you have tried a new cell and the remote keyfob is still not work, 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 in the module is damaged, the module will not be able to communicate with other modules of the vehicle. To determine the cause you'll require an OBD scanner that can reveal what the onboard computer is telling it to do.

The battery inside the key fob of your Dawn includes metal retaining clips that hold it in place and complete the circuit. The clips may corrode and make the battery contacts useless. When replacing the battery, be sure that it is the exact same size and voltage as the original. Otherwise 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 could be damaged by water if dropped in water or soaked in soapy water. It is possible to clean the keyfob by using electronic cleaners or isopropyl alcohol but you will have to replace the chip if it is damaged.

Signal Interference

Signal interference can cause your Dawn keyfob to cease functioning. The interference could be caused by objects in the vicinity of your car or weather conditions, as well as transmitters that operate on the same frequency band. A defective receiver module can also cause interference. If you're unable to solve your issue by reducing the amount of interference, you can try using an amplifier or range extender.

If the button cell battery is completely drained it's time to replace it. The battery should have the same voltage, size and type as the original battery in order to ensure that your vehicle is compatible with the key fob. If your key fob starts to work intermittently, it could mean the chip is fried.

If you've tried the previous methods but are still unable to get your key to unlock or lock, it's likely time to call an experienced locksmith. A reputable locksmith can help you with all your Rolls Royce key fob and key programming needs. This includes reprogramming and replacement. They can offer a quote for the work that is needed. Ask the locksmith for their rates and credentials prior to hiring them.

Dead 12 Volt Batterie

The 12 volt battery that is in your Rolls Royce Dawn is responsible to provide high electric current, not just to start the engine, but also to power all accessories and on-board computers. This battery will not work if it is dead or if the current flow is disrupted by corrosion of the battery's terminals or the ground connection.

To determine the condition of your Dawn battery it is possible to conduct an electrical conductivity test using a multimeter. To do this, remove the negative cable of the battery and connect one probe of the Multimeter to ground wire of the battery. Then, touch the other probe of the Multimeter to any exposed metal parts of your vehicle, including the body, chassis or engine. The reading should be close to zero in ohms.

If the results aren't satisfactory You can replace the battery with another one of the same voltage, size and specification. Be sure to fully charge the new battery before using it. The most common cause of an unreliable battery is internal degeneration due to age. However, it can also occur as a result an unnatural draw or if your vehicle has been parked for a long time.