| SKU: | AX13208 |
| Brands: | Toyota |
| Category: | Smart Key |
| Manufacturer: | EoneBoss |
| Number of Buttons: | 4 |
| SKU: | AX13208 |
| Condition: | Aftermarket |
| Proximity: | Yes |
| Panic Button: | No |
| Weight: | 0.07 kg |
| Categories: | Keys & Remotes, Remote PCB |
| Subcategory: | Smart Key |
| Brands: | Toyota |
| Manufacturer: | EoneBoss |
| Frequency: | 312.09/314.35 MHz |
| Number of Buttons: | 4 |
The EoneBoss ET-03 Universal Smart Remote Key PCB is a Bluetooth app-programmable replacement PCB designed for Toyota smart key applications. Built on the same EoneBoss platform as the ET-01 and ET-02, the ET-03 targets a distinct set of Toyota board numbers — 0410, 0351, 3450, and 3330 — with FSK modulation and a default dual frequency of 312.09/314.35MHz, covering newer Toyota models from 2018 onward including the Camry, RAV4, Avalon, C-HR, IZOA, and Wildlander.
With a 4-button layout covering lock, unlock, trunk, and panic functions, the ET-03 delivers OEM-level performance at an aftermarket price point. Frequency and button configurations are fully adjustable through the EoneBoss Bluetooth app — no dedicated key programmer required — and the board supports both Add Key and All Keys Lost (AKL) scenarios.
Sold as a PCB only. Shell and CR2032 battery must be purchased separately.
Compatible Board Numbers: 0410, 0351, 3450, 3330

| Specification | Details |
|---|---|
| Manufacturer | EoneBoss |
| Buttons | 4 |
| Frequency | Switchable |
| Battery | CR2032 (Not Included) |
| Proximity / Smart / Keyless Go | Yes |
| Transponder ID | 4D / 8A |
| Specification | Details |
|---|---|
| Board Number | 0410 |
| Modulation | FSK |
| Frequency | 312.09 / 314.35 MHz |
| Buttons | Lock, Unlock, Trunk, Panic |
Entering Bluetooth Mode: Press and hold buttons A and B together for 3 seconds to activate Bluetooth mode. Once active, the blue indicator light will flash continuously.
Exiting Bluetooth Mode: The unit will exit automatically after 30 seconds of inactivity. Alternatively, press and hold buttons A and B together for 3 seconds to exit manually. The blue light will turn off once exited.
Special Case: On the ET-11 model, buttons A, B, and C must be pressed and held together to enter or exit Bluetooth mode.

1. Adjustable Frequency (via Phone App)
A standout feature of the ET-03 is its adjustable frequency capability. Using the EoneBoss mobile app, the remote can be programmed to generate multiple frequencies, giving it broad compatibility across older and newer Toyota models alike. This allows technicians to fine-tune the remote to match the exact vehicle requirement, improving both usability and reliability in the field. Supported frequencies include:
Dual Frequency (MHz): 312.09/314.35, 312.50/313.09, 312.09/314.00, 313.09/312.09, 314.00/312.50, 314.00/315.10, 314.35/312.09, 314.35/315.10, 314.10/314.00, 315.10/314.35, 315.10/314.00, 433.58/434.30, 433.58/434.42, 434.30/433.58, 434.42/433.58
Single Frequency (MHz): 312.15, 314.01, 314.35, 314.358, 315.12, 315.128, 315.15, 433.92, 433.93
2. Customizable Button Functions (via Phone App)
The ET-03's 4 buttons can be individually programmed for core functions including door lock/unlock, trunk release, and panic alarm activation. This gives technicians the flexibility to configure the remote to fit specific use cases, including emergency scenarios.
3. Compatible with Mobile App Programming — No Dedicated Device Required
Programming the ET-03 only requires downloading the EoneBoss app, available on both the Android Play Store and the iPhone App Store, then connecting via Bluetooth. There's no need to invest in a separate dedicated programming device, simplifying the workflow significantly. Once programmed, the key can be matched to the vehicle using any compatible third-party programming device.
The ET-03 offers a cost-effective alternative to OEM remote controls, delivering comparable reliability at a fraction of the price. Its adjustable frequency and customizable buttons make it highly versatile and easy to set up via the EoneBoss app, while broad compatibility across Toyota sedans, SUVs, and trucks ensures it fits a wide range of replacement and add-key scenarios.
| Brand | Model | From Year | To Year |
|---|---|---|---|
| Toyota | Camry | 2018 | 2019 |
| Toyota | C-HR | 2022 | — |
| Toyota | IZOA | 2018 | 2022 |
| Toyota | RAV4 | 2020 | 2022 |
| Toyota | Avalon | 2018 | 2022 |
| Toyota | Wildlander | 2018 | 2022 |
| SKU | AX13208 |
| Brand | Toyota |
| Condition | Aftermarket |
| Frequency | 312.09/314.35 MHz |
| Manufacturer | EoneBoss |
| Released Year | 2026 |
| Warranty | International |
| Weight | 0.07 kg |
| TRANSPONDER ID | 4A&8A |
| BATTERY | CR2032 |
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Toyota is a leading automotive parts manufacturer specializing in high-quality remote keys and security systems. Founded with a commitment to innovation and reliability, we serve customers worldwide with premium automotive solutions.
Our products undergo rigorous testing to ensure compatibility and durability. We pride ourselves on excellent customer service and fast, reliable shipping to get you back on the road quickly.