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EoneBoss ET-04 Lexus Universal Smart Remote Key PCB, 4-Button, 4D&8A

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CA$30.00

CA$35.00
SKU:AX13209
Brands:Lexus
Category:Keys & RemotesSmart Key
Manufacturer:EoneBoss
Number of Buttons:4
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SKU:AX13209
Condition:Aftermarket
Proximity:Yes
Panic Button:Yes
Weight:0.07 kg
Categories:Keys & Remotes
Subcategory:Smart Key
Brands:Lexus
Manufacturer:EoneBoss
Frequency:312.09/314.35 MHz
Number of Buttons:4

EoneBoss ET-04 Lexus Universal Smart Remote Key PCB – 4-Button, 4D & 8A Transponder (Bluetooth App-Programmable)

The EoneBoss ET-04 Universal Smart Remote Key PCB is a Bluetooth app-programmable replacement PCB built exclusively for Lexus smart key applications. The ET-04 targets board numbers 0440 and 3410, with FSK modulation and a default dual frequency of 312.09/314.35MHz, covering a range of Lexus models including the LC, LS500, LS500H, UX, ES300H, and ES200.

With a 4-button layout covering lock, unlock, trunk, and panic functions, the ET-04 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: 0440, 3410

Default Factory Settings

Specification Details
Board Number 0440
Modulation FSK
Frequency 312.09 / 314.35 MHz
Buttons Lock, Unlock, Trunk, Panic

Product Highlights of EoneBoss ET-04

  1. Generated quickly and easily via the Bluetooth phone app
  2. Stable performance with reliable build quality
  3. Supports frequency generation across multiple board types
  4. Supports both Add Key and All Keys Lost (AKL) scenarios
  5. Covers a wide frequency range from 312MHz to 434MHz
  6. Free ongoing support for future program upgrades
  7. Supports key unlocking and repeated key generation
  8. Supports emergency start functionality
  9. No restrictions on matching devices
  10. Cloneable for added flexibility
  11. Unlockable for reuse
  12. Long-distance remote control range
  13. Every unit passes quality inspection before shipping, backed by full quality assurance for confident purchasing

EoneBoss ET-04 – How to Enter Bluetooth Mode

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.

Main Features of EoneBoss ET-04

1. Adjustable Frequency (via Phone App)

A standout feature of the ET-04 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-04'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-04 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.

Advantages of Choosing EoneBoss ET-04

The ET-04 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 Lexus sedans and SUVs ensures it fits a wide range of replacement and add-key scenarios.

EoneBoss ET-04 – Popular Compatible Vehicle Models

Brand Model From Year To Year
Lexus LC 2018
Lexus LS500 2019
Lexus LS500H 2017
Lexus UX 2019
Lexus ES300H 2018 2020
Lexus ES200 2018 2020
Specification
SKU AX13209
Brand Lexus
Condition Aftermarket
Frequency 312.09/314.35 MHz
Manufacturer EoneBoss
Released Year 2026
Warranty International
Additional information
Weight

0.07 kg

TRANSPONDER ID

4A&8A

BATTERY

CR2032

  • Address: 502 New Design Str, Melbourne, San Francisco, CA 94110, United States
  • Contact Seller: (+91) - 540-025-553

Rating

92%

Ship on time

100%

Chat response

89%

Lexus 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.

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