Wireless Systems Function Check [12/2024 - ]: Procedure

2025 Toyota 4Runner SR5, 4WDSECTION Procedure
  1. CHECK CUSTOMIZE ITEMS 
    1. Use the following customize setting methods to confirm that the smart key system is enabled.
      • Using the GTS
      • Using the multi-display
      • Using manual operation

      Check the customize settings.

      Refer to CUSTOMIZE PARAMETERS [12/2024 - ] 

    2. Use the following customize setting methods to confirm that the wireless door lock system is enabled.
      • Using the GTS
      • Using the multi-display

      Check the customize settings.

      Refer to CUSTOMIZE PARAMETERS [12/2024 - ]

      HINT: 

      • Even when the smart key system is disabled by a customize setting, the engine can be started by an emergency key operation.
      • If the smart key system or wireless door lock control system is disabled, all entry and start functions or wireless functions will not operate.

      Result

      Result Proceed to
      Wireless door lock control system and smart key system are enabled A
      Smart key system is disabled B
      Wireless door lock system is disabled C

    Result: 

    GO TO CUSTOMIZE PARAMETERS 

    Refer to CUSTOMIZE PARAMETERS [12/2024 - ]

    Result: 

    GO TO CUSTOMIZE PARAMETERS 

    Refer to CUSTOMIZE PARAMETERS [12/2024 - ]

    Result: 

    See step  2

  2. CHECK POWER DOOR LOCK CONTROL SYSTEM 
    1. Check the power door lock control system.

      Refer to OPERATION CHECK [12/2024 - ]

      Result

      Result Proceed to
      Power door lock control system operates properly A
      Power door lock control system does not operate properly B

    Result: 

    REFER TO "POWER DOOR LOCK CONTROL SYSTEM" 

    Result: 

    See step  3

  3. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM 
    1. Check that there are no problem symptoms applicable to Problem Symptoms Table (Wireless Door Lock Control System).

      Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]

      HINT: 

      Operation Check: Refer to OPERATION CHECK [12/2024 - ]

      Result

      Result Proceed to
      No applicable items A
      Applicable items B

    Result: 

    GO TO PROBLEM SYMPTOMS TABLE (Wireless Door Lock Control System) 

    Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]

    Result: 

    See step  4

  4. CHECK SMART KEY SYSTEM (for Entry Function) 
    1. Check that there are no problem symptoms applicable to Problem Symptoms Table (Smart Key System (for Entry Function)).

      Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]

      HINT: 

      Operation Check: Refer to OPERATION CHECK [12/2024 - ]

      Result

      Result Proceed to
      No applicable items A
      Applicable items B

    Result: 

    GO TO PROBLEM SYMPTOMS TABLE (Smart Key System (for Entry Function)) 

    Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]

    Result: 

    See step  5

  5. CHECK SMART KEY SYSTEM (for Start Function) 
    1. Check that there are no problem symptoms applicable to Problem Symptoms Table (Smart Key System (for Start Function)).

      Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ] 

      HINT: 

      Operation Check: Refer to OPERATION CHECK [12/2024 - ] 

      Result

      Result Proceed to
      No applicable items A
      Applicable items B

    Result: 

    USE SIMULATION METHOD TO CHECK 

    Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]

    Result: 

    GO TO PROBLEM SYMPTOMS TABLE (Smart Key System (for Start Function)) 

    Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ] 

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.