Toyota ProSmart v3.1
ProSmart v3.1—Smart-Key Emergency Start & Programming Tool (Toyota | Lexus)
Professional OBD-LIN Adapter—Advanced smart-key registration, emergency start, and SmartECU management for authorized workshops and locksmiths.
ProSmart v3.1 is a next-generation toolkit designed for emergency start and key programming on Toyota and Lexus vehicles (2015–2018 MY) equipped with the latest SmartECU Smart-Key systems. It enables secure, reliable recovery and replacement of SmartECUs where direct memory access is restricted—maintaining the trusted single-point OBD workflow for professional use.
Supported models
Lexus: GX, IS, LS, LX, NX, RX
Toyota: Alphard, Camry, CHR, Highlander, Land Cruiser, Land Cruiser Prado, RAV4
Smart keys with ID 88, A8, and A9 are used in systems with new-generation SmartECUs (refer to ECU SKU numbers for detailed compatibility).
Always confirm compatibility by VIN and vehicle variant—regional firmware or ECU versions may affect support.
Core functions
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Emergency start capability: Start vehicles when the original SmartECU or keys are unavailable using a compatible replacement ECU.
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Smart-key registration: Program new or used smart keys directly through the SmartECU system.
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SmartECU replacement support: Register and synchronize new SmartECU modules (new or used with pre-registered keys).
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LIN-bus communication: Connects via a single-probe LIN line for precision-level ECU interfacing.
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Automatic system recognition: Detects SmartECU generation and key ID for simplified workflow.
⚠ Important safety & operational notes
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Gear selector position: During ECU or key programming, ensure the gear selector is in “PARK.”
If set to “NEUTRAL,” all ECUs may become blocked.
Use Toyota TK-Prog Master v5.0 to reset any blocked ECUs. -
Backup recommended: Always perform ECU backup before key registration or replacement.
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For authorized use only: Intended for professional locksmiths and service centres.
Why choose ProSmart v3.1?
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Secure emergency operation: Enables vehicle start and key learning without original keys.
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OBD + LIN integration: Simple, single-point access for SmartECU-level programming.
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Used ECU compatibility: Supports ECUs with previously registered keys.
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Reliable workflow: Step-by-step prompts ensure safe and consistent operations.
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Optimized for modern models: Fully supports 2015–2018 SmartECU architectures.
Typical workflow (overview)
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Connect ProSmart v3.1 to the vehicle OBD port and LIN probe.
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Detect SmartECU and verify key compatibility.
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Perform ECU backup (recommended).
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Register new or used keys following on-screen prompts.
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Confirm emergency start and keyless functionality.
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Restore or reset SmartECU if required.
Who should use ProSmart v3.1?
Professional locksmiths, dealer technicians, and authorized repair specialists who handle Toyota and Lexus smart-key systems, ECU replacement, and emergency start procedures.
Documentation (included/downloadable)
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General information sheet (download)
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Quick-start guide (download)
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Full instruction manual (download)
(Documentation provided with purchase. Please read manuals carefully before use.)
Legal & safety disclaimer
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For authorized and lawful use only.
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Always back up ECU data before programming.
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Improper use may cause ECU damage—professional training is recommended.
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Auto Turbo Decoder is not responsible for misuse or unauthorized applications.
