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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostics - Introduction (1 Of 3) >> Meter / Gauge System >> How To Proceed With Troubleshooting [06/2015 - ] >> Procedure

How To Proceed With Troubleshooting [06/2015 - ]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. CUSTOMER PROBLEM ANALYSIS 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the power 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  4

  4. CHECK CAN COMMUNICATION SYSTEM* 
    1. Check if CAN communication DTCs are output.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2015 - 11/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

      OK

      CAN communication DTCs are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2015 - 11/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

    Result: 

    OK 

    See step  5

  5. CHECK FOR DTC* 
    1. Check for DTCs and note any codes that are output.

      Refer to DTC CHECK / CLEAR [06/2015 - ]

      Body Electrical > Combination Meter > Trouble Codes 

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [06/2015 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Recheck for DTCs by simulating the operation indicated by the DTCs.

      Refer to DTC CHECK / CLEAR [06/2015 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [06/2015 - 01/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [01/2018 - 11/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2018 - ] 

    Result: 

    OK 

    See step  6

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

      Refer to PROBLEM SYMPTOMS TABLE [06/2015 - 01/2018] , or refer to PROBLEM SYMPTOMS TABLE [01/2018 - 11/2018] , or refer to PROBLEM SYMPTOMS TABLE [11/2018 - ]

      Result

      Result Proceed to
      Fault is not listed in Problem Symptoms Table. A
      Fault is listed in Problem Symptoms Table. B

    Result: 

    B 

    PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM. Refer to  PROBLEM SYMPTOMS TABLE [06/2015 - 01/2018]  , or refer to  PROBLEM SYMPTOMS TABLE [01/2018 - 11/2018]  , or refer to  PROBLEM SYMPTOMS TABLE [11/2018 - ] 

    Result: 

    A 

    See step  7

  7. PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM* 
    1. Operation Check.

      Refer to OPERATION CHECK [06/2015 - 11/2018] , or refer to OPERATION CHECK [11/2018 - ] 

    2. Terminals of ECU.

      Refer to TERMINALS OF ECU [06/2015 - ]

    3. Data List / Active Test.

      Refer to DATA LIST / ACTIVE TEST [06/2015 - 01/2018] , or refer to DATA LIST / ACTIVE TEST [01/2018 - 11/2018] , or refer to DATA LIST / ACTIVE TEST [11/2018 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  8

  8. ADJUST, REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  9

  9. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END