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Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Rear Sunshade System - Diagnostics & Symptom Tests >> Rear Sunshade System >> How To Proceed With Troubleshooting [11/2020 - 12/2023] >> Procedure

How To Proceed With Troubleshooting [11/2020 - 12/2023]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the ignition switch off.

      Standard voltage

      11 to 14 V

      If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
    1. Use the GTS to check if the CAN communication system is functioning normally.

      Refer to DIAGNOSIS SYSTEM [11/2020 - 12/2022] , or refer to DIAGNOSIS SYSTEM [12/2022 - 12/2023]

      Result

      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2020 - 11/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 12/2022]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2022 - 12/2023] 

    Result: 

    See step  4

  4. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table.

      Refer to PROBLEM SYMPTOMS TABLE [11/2020 - 12/2022] , or refer to PROBLEM SYMPTOMS TABLE [12/2022 - 12/2023] 

      Result

      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

    Result: 

    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE 

    Result: 

    See step  5

  5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Operation Check.

      Refer to OPERATION CHECK [11/2020 - 12/2022] , or refer to OPERATION CHECK [12/2022 - 12/2023] 

    2. Data List / Active Test.

      Refer to DATA LIST / ACTIVE TEST [11/2020 - 12/2023] 

    3. Terminals of ECU.

      Refer to TERMINALS OF ECU [11/2020 - 12/2022] , or refer to TERMINALS OF ECU [12/2022 - 12/2023] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  6

  6. ADJUST, REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  7

  7. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END