Mitsubishi Remote Head Key (FCC ID MIT11R) – Specs & Programming

Operating at 433 MHz with a PCF7936 transponder, the Mitsubishi Remote Head Key (FCC ID MIT11R) integrates remote-lock functionality and immobilizer authentication into a single housing. This unit is identifiable by its MIT11R blade profile, a high-security keyway specific to certain Mitsubishi Motors platforms. Inside the remote head sits the PCF7936 chip responsible for cryptographic handshake with the vehicle’s immobilizer ECU. The Mitsubishi Remote Head Key (FCC ID MIT11R) is a combined device — meaning the remote buttons and the mechanical ignition blade share one shell rather than being separate pieces. A correctly enrolled Mitsubishi Remote Head Key (FCC ID MIT11R) will start the engine and operate the vehicle’s central locking system through RF communication at 433 MHz.

Mitsubishi Remote Head Key (FCC ID MIT11R) — Technical Breakdown

The PCF7936 is a widely recognized immobilizer transponder in the automotive locksmith trade. It operates passively, drawing power from the inductive field generated by the antenna ring around the ignition barrel. When the key is inserted and turned, the ring energizes the chip, which responds with an encrypted rolling or fixed code that the immobilizer module verifies before allowing fuel injection and spark. Without a properly paired transponder, the engine will crank but will not start — a fundamental anti-theft measure built into every vehicle that accepts this key.

The MIT11R blade profile uses a specific set of cuts and depths that differ from older Mitsubishi keyways such as MIT8 or MIT9. Locksmiths cutting this blade need the correct key machine cutter and a code card or on-vehicle decode to produce the proper bitting. The blade is a standard insert-and-turn design rather than a sidewinder or laser-cut track, which simplifies duplication for shops that stock the right blank.

At 433 MHz, the remote portion of this device transmits lock, unlock, and potentially panic or trunk-release commands to the vehicle’s body control module. This frequency is standard for many non-North-American Mitsubishi models, distinguishing it from 315 MHz variants more commonly seen in the United States domestic market. Locksmiths and vehicle owners should verify that the replacement unit matches the correct frequency before purchasing, as a 315 MHz remote head will not communicate with a 433 MHz receiver, even if the blade and transponder are identical.

Vehicle Compatibility

The validated fitment for this key is the Mitsubishi i-MiEV, covering model years 2009 through 2021. The i-MiEV was Mitsubishi Motors’ mass-market battery-electric vehicle, sold in various global markets. Despite being an electric vehicle, it still uses a traditional ignition-style key-and-transponder system rather than a push-button smart key arrangement. This means the key must be physically inserted and turned to activate the vehicle’s drive-ready state.

Because the i-MiEV was produced across a wide model year range with relatively few mid-cycle hardware changes to the immobilizer system, the same FCC ID and transponder chip generally apply throughout. However, locksmiths should always confirm the VIN and existing key type before ordering a replacement, as regional variants may differ in remote button configuration or frequency.

Programming Procedure Considerations

Enrolling a new remote head key to a Mitsubishi i-MiEV typically requires a diagnostic programming tool capable of communicating with the vehicle’s immobilizer module. The PCF7936 chip inside the device must be registered to the ECU before the engine will recognize it. Some Mitsubishi platforms support an on-board key learning procedure using existing working keys, but the availability of this method varies by year and market. A professional automotive locksmith equipped with tools such as the Smart Pro, Autel IM608, or similar advanced programmers can usually complete both transponder registration and remote pairing in a single session.

Remote programming — the process of teaching the vehicle’s receiver to accept the 433 MHz signal from the new fob — is a separate step from transponder enrollment. Both must be completed for full functionality. If only the transponder is programmed, the engine will start but the remote buttons will not operate. Conversely, if only the remote is paired, the doors will lock and unlock but the immobilizer will block engine start.

OEM vs. Aftermarket Considerations

Aftermarket versions of this remote head key are available and generally use a compatible PCF7936 transponder with a pre-cut or blank MIT11R blade. The primary trade-off is shell quality — OEM Mitsubishi keys tend to have tighter tolerances on button feel, rubber pad durability, and overall housing fit. Aftermarket units are significantly less expensive and functionally identical once programmed, making them a practical choice for budget-conscious owners or for producing a spare.

When sourcing the key, verifying the FCC ID designation MIT11R and confirming the 433 MHz operating frequency are the two most important checks. A mismatched frequency is the most common cause of remote failure after programming, and it is not correctable after the fact — the crystal oscillator inside the fob is fixed at the factory.

When to Contact a Locksmith

Vehicle owners who need a replacement for this device should seek an automotive locksmith rather than a general hardware store. The PCF7936 transponder registration and 433 MHz remote pairing both require specialized equipment that general key-cutting kiosks do not provide. A qualified locksmith can cut the MIT11R blade, program the immobilizer chip, and pair the remote in a single appointment — often at the vehicle’s location, avoiding the need for a tow to a dealership.

For the Mitsubishi i-MiEV specifically, dealership availability has become limited in many regions as the model was discontinued. Independent locksmiths with Mitsubishi programming capability offer a reliable alternative for key replacement and duplication services.