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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Plug-In Charge Control System - Diagnostic Codes (3 Of 3) & Symptom Tests) >> PLUG-IN CHARGE CONTROL SYSTEM (for PHEV Model) >> Cannot Set or Change Charge Schedule Setting [12/2023 - ] >> Procedure

Cannot Set or Change Charge Schedule Setting [12/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC OUTPUT (HEALTH CHECK) 
    1. Enter the following menus: Health Check.
    2. Check DTCs.

      Result

      Result Proceed to
      No DTCs are output A
      DTCs are output B
    3. Turn the ignition switch off.

    Result: 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ] 

    Result: 

    See step  2

  2. CUSTOMER ANALYSIS 
    1. Confirm the method the customer used for setting the charge schedule (radio and display receiver assembly or smartphone).

      Result

      Result Proceed to
      Radio and display receiver assembly was used A
      Smartphone was used B

    Result: 

    See step  4

    Result: 

    See step  3

  3. SIMULATION TEST (RADIO AND DISPLAY RECEIVER ASSEMBLY) 

    HINT: 

    Check that the number of charging schedules has not reached the maximum limit, and if it has reached the maximum limit, delete 1 or more of the charging schedules and perform the test again.

    1. Turn the ignition switch to ON.
    2. Touch the "Info" icon on the menu screen and then touch the "Charge Schedule" icon to display the Charge Schedule screen.
      1. Change or set the charge schedule on the setting screen.

        Result

        Result Proceed to
        Charge schedule can be changed/set A
        Charge schedule cannot be changed/set B
    3. Turn the ignition switch off.

    Result: 

    CAUSE ANALYSIS (USER USING RADIO AND DISPLAY RECEIVER ASSEMBLY) 

    1. Analyze the cause according to the following table.
      USER RELATED CAUSE

      Possible Cause Action to be Taken
      Charge schedule setting method Interview customer and provide instruction on usage.
      Refer to PROBLEM SYMPTOMS TABLE [12/2023 - ]
      1. Explain to the customer that the charge schedule can be set on the radio and display receiver assembly with the ignition switch ON or ON (READY).
      Maximum number of charge schedule registered Interview customer and provide instruction on usage.
      Refer to PROBLEM SYMPTOMS TABLE [12/2023 - ]
      1. Explain to the customer that up to 15 scheduled charge schedules can be registered. If more than 15 charge schedules are attempted to be set, the screen will gray outs.
    2. Take appropriate action in accordance with the result of the cause analysis.

    Result: 

    GO TO AUDIO AND VISUAL SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [12/2023 - ] 

  4. SIMULATION TEST (USING SMARTPHONE) 
    1. Start the app on the customer's smartphone and change the charge schedule.
    2. Turn the ignition switch to ON.
    3. Check that the charge schedules displayed on the multi-display assembly are the same as that set using the smartphone.

      HINT: 

      Depending on the vehicle location, it may take a few minutes for the charge schedule set using the smartphone to be received by the vehicle.

      Result

      Result Proceed to
      Charge schedule can be changed A
      Charge schedule can not be changed B
    4. Turn the ignition switch off.

    Result: 

    CAUSE ANALYSIS (USER USING SMARTPHONE RELATED CAUSE) 

    1. Analyze the cause according to the following table.
      USER RELATED CAUSE

      Possible Cause Action to be Taken
      Charge schedule was attempted to be changed simultaneously using smartphone and radio and display receiver assembly Explain to the customer that the charge schedule cannot be changed using a smartphone while it is being changed on the radio and display receiver assembly.
    2. Take appropriate action in accordance with the result of the cause analysis.

    Result: 

    GO TO TELEMATICS SYSTEM. Refer to  SYSTEM DESCRIPTION [09/2023 - ]