Activator keyless entry

Types of Activator Keyless Entry

Activator keyless entry is a technology that allows drivers to unlock and start their vehicles without physically using a traditional key. This system relies on a key fob that communicates with the car through radio signals. When the fob is within a certain range, it allows access to the vehicle, and once inside, the driver can start the engine with the push of a button. Activator keyless entry improves convenience, enhances security, and reduces wear and tear on traditional keys.

Every activator keyless entry system has two main components: the key fob and the receiver module in the vehicle. The key fob has a battery-powered transmitter that sends out a unique radio signal. When the driver approaches or touches the door handle, the vehicle's receiver module detects the signal. Depending on the action (unlocking or locking), the receiver module responds by unlocking or locking the doors.

The key fob also has a button that sends a signal when pressed, allowing for remote locking or unlocking from a distance. Some key fobs also include a panic button that alerts the car alarm in case of theft or an emergency. The integrated circuits in the key fob and the vehicle ensure that only authorized signals are received and transmitted, preventing unauthorized access.

There are several types of keyless entry systems, including:

• Keyless Entry with Remote Control: This is the basic keyless entry system. The driver uses a remote control key fob with buttons to lock and unlock the car doors from a distance. Some remote key fobs also allow the trunk to open. Activator keyless entry with remote control offers convenience but doesn't allow the driver to start the engine without inserting a key.
• Keyless Entry with Key Pad: This system allows access through a key pad located on the driver's door. The user must enter a pre-set code on the key pad to unlock the doors. Sometimes, users can re-program or change the code to enhance security and prevent unauthorized access. Keyless entry with a key pad is useful when the key fob is lost or has a dead battery.
• Passive Keyless Entry and Start System: This is the most advanced keyless entry system. It allows the driver to keep the key fob in their pocket or purse. The system automatically detects the fob when the driver approaches the vehicle. The door handles have sensors that unlock the doors when they touch or grip the handle. Inside the car, the start button allows the driver to start the engine with a push. Since no buttons are pressed on the fob, it remains in its place, and the driver can access the trunk or other compartments.
• Smart Key System: This system is found in most luxury and high-end vehicles. It offers advanced keyless entry and start features. Besides door unlocking and engine starting, the smart key system controls other functions like adjustable seats, personalized climate settings, and memory for multiple drivers. The smart key system uses advanced encryption and rolling codes to enhance security and prevent key cloning.

Specifications and Maintenance of Activator Keyless Entry

Specifications of the keyless entry activator vary depending on the make and model of the vehicle, as well as the aftermarket component. Here are some common specifications to keep in mind.

• Frequency Band

  Keyless entry systems operate on specific frequency bands. This allows the remote and the vehicle to communicate without interference. The frequency bands differ, depending on the country and regulations. Common bands include 315 MHz, 433.92 MHz, 868 MHz, and 902 MHz.

• Security Features

  Security features prevent unauthorized access to the vehicle. Some common features include rolling code transmission, encryption and authentication, and frequency hopping spread spectrum.

• Power Source

  The key fob requires a power source to operate. Most key fobs have batteries that require periodic replacement. The most common batteries are CR2032 and CR2025. These batteries provide around 3 volts of power.

• Communication Protocol

  The communication protocol defines how the key fob and the vehicle's receiver communicate. Common protocols include KEELOQ, SHA-1, and AES. The protocol ensures secure and reliable communication between the key fob and the vehicle.

• Range

  The range specification for keyless entry systems varies depending on the system's design and the environment. Keyless entry systems typically have a range of 5 to 20 meters (15 to 65 feet). However, physical obstacles like buildings or trees may reduce the range.

Maintaining the keyless entry activator is crucial for ensuring its longevity and optimal performance. Here are some general keyless entry maintenance tips.

• Battery Replacement: Regularly check the key fob battery to ensure it still has enough charge. Take note of any signs of a dying battery, such as decreased range or unresponsiveness. Replace the battery as soon as possible to avoid further complications.

• Keep It Clean: Regularly wipe the key fob with a soft, damp cloth to remove dirt, dust, or debris. Avoid using harsh chemicals that can damage the key fob's surface. Additionally, clean the keyless entry receiver mounted under the dashboard to prevent dirt and dust accumulation.

• Avoid Moisture Exposure: Water and moisture damage key fobs and receivers. Keep the key fob away from wet or damp areas. If the key fob gets wet, promptly dry it to prevent damage.

• Protect It from Physical Damage: Protect the key fob from physical damage like drops and impacts. Use a key fob cover or case to protect it from everyday wear and tear. Additionally, keep the key fob away from magnetic fields and strong electrical interference.

• Replace Damaged Components: If the key fob or receiver develops any damage, replace it as soon as possible. Repairing or replacing damaged components can save costs in the long run.

How to choose Activator Keyless Entry

Choosing the right keyless entry system for a car depends on a number of factors. Here are some of them:

• The first thing to consider when choosing an activator keyless entry system is the level of security it provides. Look for systems that have additional security features to prevent car theft. Such security features are warning chimes, rolling codes and encrypted signals.
• Consider the convenience features that the keyless entry system offers. Some systems allow for personalized settings such as memory seats and remote trunk access. Others have a smart sensor that detects the key fob in the owner's pocket or bag. These features make entry and exit from the car easy and convenient.
• Consider the compatibility of the keyless entry system with the key fob. This is because not all key fobs are compatible with every keyless entry system. The keyless entry system to be installed in the car should be compatible with the key fob to avoid communication failure between the key and the system.
• Consider the range of the keyless entry system. Different keyless entry systems have different ranges. Some systems allow the user to open or close the car doors from a distance of up to 100 feet, while others have a range of about 50 feet. Depending on the budget, choose an activator with the desired range.
• Consider the battery life of the key fob. Key fobs with replaceable batteries are more convenient and cost-effective in the long run. Also, look for key fobs with energy saving technology.
• When choosing an activator keyless entry system, consider additional features such as remote start, push button start and integrated GPS. These features enhance the overall experience of using the keyless entry system.

How to DIY and replace activator keyless entry

Replacing a keyless entry remote can be a DIY-friendly job. Below are some of the tools needed and a step-by-step guide on how to replace it.

Tools needed:

• Screwdriver
• Bowl or small container
• Plastic trim tool or credit card

Step-by-step guide

• Gather all the necessary tools for the replacement.
• Use a screwdriver to remove the screws holding the trim piece.
• Use a plastic trim tool or credit card to carefully pry off the trim piece without damaging it.
• Pull out the old module and disconnect the wiring.
• Connect the wiring to the new module and slide it into place.
• Pry open the fob and replace the battery.
• Reassemble the fob and test it to ensure it's working.

Q and A

Q1. Why is my key fob not working?

A1. The key fob may not be working because of a dead battery, interference from electronic devices, a damaged key fob, or issues with the car's receiver.

Q2. How often should I replace the key fob battery?

A2. Key fob batteries should typically be replaced every 1-3 years, depending on usage and battery type.

Q3. Can I program a key fob myself?

A3. Some key fobs can be reprogrammed with specific instructions that car manufacturers provide. However, others may require a locksmith or dealer.

Q4. What should I do if I lose my key fob?

A4. If a key fob is lost, the user should immediately inform the car dealer or a locksmith to disable it. They can provide a new key fob and reprogram the system to prevent unauthorized access.

Q5. Is it possible to use a spare key fob without reprogramming it?

A5. In some cases, a spare key fob that has previously been programmed to the car can be used without reprogramming. However, key fobs that have not been used before will require reprogramming to function.