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Frequently Asked Questions (FAQ)

Answers to your questions about keys, chips, and programming

Transponders & Chips

What is a car key transponder?
A transponder is a small electronic chip embedded in the head of the car key. This chip communicates with the vehicle's immobilizer system to allow the engine to start. Without the correct programmed transponder, the car will not start.
What is the difference between an ID46 and an ID48 chip?
ID46 (Philips Crypto 2) and ID48 (Megamos Crypto) are two different transponder technologies. They are not interchangeable. ID46 is commonly used in GM, Honda, Mitsubishi, while ID48 is standard in many Volkswagen Group vehicles (VW, Audi, Seat, Skoda).
How do I know if my key has a transponder?
Most car keys manufactured after 1995 have a transponder. Often, the key head is thicker (plastic) to house the chip. If you have a thin, all-metal key, it likely doesn't have a chip, unless it's a very old model.
What is a universal transponder or emulator?
These are rewritable chips (like the VVDI Super Chip or LKP series) that can be configured to mimic or emulate different types of original transponders. They are very useful for locksmiths because they reduce the need to stock hundreds of different chips.
What is a virgin chip and when do I need it?
A virgin chip is a new transponder that hasn't been programmed or locked to a specific vehicle. Many modern cars (especially using ID46, ID48 or HITAG) require the chip to be 'pre-coded' or prepared for the specific brand before it can be programmed to the car.
What is the difference between Toyota G chip and H chip?
These are generations of Toyota immobilizer systems. The 'G' chip (stamped on blade) was used approx. 2010-2014. The 'H' chip (more secure) was introduced later. They are not compatible with each other.
What is a 4D60 vs 4D63 chip?
These are variants of Texas Crypto chips. The 4D60 is generic 40-bit, while 4D63 (common in Ford/Mazda) is 80-bit (newer) or 40-bit. Using the wrong one will prevent programming.
What is KEYDIY or XHORSE?
These are leading brands in universal remote generation technology and programming tools. They allow locksmiths to generate remotes for thousands of cars using a single base hardware.

Key Programming

Can I program a car key myself?
It depends on the vehicle. Some older models allow 'on-board' programming (using a sequence of steps with already programmed keys). However, the vast majority of modern cars require professional programming equipment (scanners) connected to the OBD2 port.
What is the difference between cloning and programming a key?
Cloning is copying exact data from an existing key to a new one; the car thinks it's the same key. Programming is adding a new, unique key to the car's memory (ECU). Programming usually requires OBD2 access, while cloning only requires the original key.
What is key cutting by code?
It is cutting a key using the manufacturer's original mechanical code rather than duplicating a worn-out key. This creates a key with perfect factory cuts, ideal when all keys are lost or the original is badly worn.
What are Lishi tools?
Lishi is a brand of high-precision decoder picks used by automotive locksmiths. They allow opening the car lock without damage and simultaneously reading the cut heights needed to make a new key.
I lost ALL my keys, what do I do?
An automotive locksmith can come to you, open the car without damage, decode the lock to cut a new key, and connect a scanner to program the chip and remote. It is generally faster and cheaper than towing to the dealership.
Why is a locksmith a better option than the dealership?
Mobile automotive locksmiths offer on-site service (saving you towing), are usually more affordable, have flexible hours, and can often perform jobs (like repairing ignitions or regenerating lost keys) faster than waiting for dealer parts.
Can I convert a simple key to a Flip Key?
Yes, there are conversion shells and 'Flip' remotes available. The locksmith cuts the new blade, transplants the chip (or generates a new one), and programs the remote so you have a modern, comfortable key.

Remote Controls

Why did my remote control stop working?
The most common causes are: 1) Dead battery (most frequent), 2) Desynchronization (needs to be paired with the car again), 3) Physical damage to buttons or circuit board, or 4) Fault in the vehicle receiver.
Can I reuse a used remote from another car?
In many cases, no. Once a modern remote or Smart Key is programmed to a car, it often gets 'locked' to that specific vehicle. However, some remotes can be 'unlocked' or 'renewed' by professional locksmiths using special equipment to make them virgin again.
How do I start my Keyless car if the remote battery is dead?
Most push-to-start cars have a back-up method. Look for a key slot to insert the fob, or try pushing the Start/Stop button directly with the remote fob itself (touching the logo or back of the fob to the button).
What are universal remotes (like Xhorse or KeyDIY)?
These are generic remote controls that can be electronically generated to function as remotes for hundreds of different brands. They offer a cost-effective and versatile solution, allowing stock for almost any car with just a few remote models.
Are aftermarket keys reliable?
Yes, if they are good quality. There are many qualities on the market. A good locksmith will use tested aftermarket remotes and chips that offer durability and function almost identical to the original for a fraction of the price.
How do I know if my remote is 315MHz or 433MHz?
It generally depends on the region. America usually uses 315MHz, while Europe and other regions use 433Mhz (or 868Mhz). Some cars use dual or specific frequencies. It can be verified with a frequency tester.
What is the 'Panic' function on a remote?
It is the red alarm button that sounds the horn and lights to ward off threats or find the car in a parking lot.
What do I do if my chip key gets wet?
Dry it immediately. Do not press buttons. Open the shell if possible, remove the battery, and dry the circuit with air or rice. Glass or ceramic chips are usually waterproof, but the remote circuit is vulnerable to corrosion.
What battery does my remote use?
You can find the exact battery type (e.g., CR2032, CR2016) in the technical specifications of your car within our Catalog. Search for your make and model, and look for the 'Battery Information' section.
Which remote allows for my car (FCC ID)?
The FCC ID is the unique identifier for the remote. In your vehicle's file in our Catalog, we specify the compatible FCC ID and correct frequency to ensure you buy the right replacement.
How do I manually synchronize my remote?
Some vehicles allow remote synchronization without OBD2 equipment. If your car has a manual procedure available, you will find it detailed step-by-step in its file within the Catalog, under 'Programming Instructions'.

PIN Code & Immobilizer

What is the immobilizer PIN code?
The PIN code (Personal Identification Number) is a numeric or alphanumeric security code required to access the vehicle's immobilizer system and program new keys. It is a security measure to prevent unauthorized key programming.
Where can I find my vehicle's PIN code?
The PIN code is often provided on a security card (Car Pass) with the original vehicle documentation. If you don't have it, an automotive locksmith can extract it using diagnostic equipment connected to the OBD2 port, or calculate it from the VIN or EEPROM reading.
My key turns but the car won't start, why?
If the engine cranks but doesn't start and you see a flashing security light on the dashboard (like a key or lock icon), the car is likely not recognizing the transponder chip. The chip might be damaged, lost, or unprogrammed.
How do Hyundai and Kia PIN codes work?
Until approx. 2016, they used a 6-digit code calculated from the VIN. Newer models (Smart Keys) use rolling codes or require direct reading from the ECU/IBU. The older system is known as SMARTRA.
What is the BCM code in Nissan vehicles?
On older Nissans, the PIN was calculated from a code written on the BCM (Body Control Module). On modern models, the system uses 20-digit rolling codes requiring specialized software.
What is Incode/Outcode in Ford?
It's a challenge-response security system. The locksmith's scanner reads an 'Outcode' from the car, this is converted via algorithm or service into an 'Incode', which is entered to authorize programming.
What is Component Security (CS) in VW/Audi?
Component Security (CS) are security bytes stored in the transponder and various car modules (dash, ECU). Programming keys on MQB or modern platforms requires reading this complex data, often needing advanced tools.

Frequently Asked Questions (FAQ)

Find answers about key programming, PIN codes, transponder types, and more. The ultimate guide for automotive locksmiths.

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