How To Proceed With Troubleshooting

HINT:

*: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 

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2. CUSTOMER PROBLEM ANALYSIS 

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3. CONNECT INTELLIGENT TESTER TO THE DLC3* 

   HINT:

   If the display indicates a communication fault in the tester, inspect the DLC3.

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4. CHECK DTC AND FREEZE FRAME DATA* 

   HINT:

   Record or print DTCs and freeze frame data, if necessary.

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5. CLEAR DTC AND FREEZE FRAME DATA* 

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6. CONDUCT VISUAL INSPECTION 

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7. SET CHECK MODE DIAGNOSIS* 

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8. CONFIRM PROBLEM SYMPTOMS 

   HINT:

   If the engine does not start, perform steps 10 and 12 first.

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occur	B

   B : GO TO STEP   10 

   A : GO TO NEXT STEP 

9. SIMULATE SYMPTOMS 

   NEXT 

10. CHECK DTC* 

    Result 

    RESULT REFERENCE
    
    

    Result	Proceed to
    Malfunction code	A
    No code	B

    B : GO TO STEP   12 

    A : GO TO NEXT STEP 

11. REFER TO  DTC CHART  

    NEXT 

    GO TO STEP   14 

12. CONDUCT BASIC INSPECTION 

    Result 

    RESULT REFERENCE
    
    

    Result	Proceed to
    Malfunctioning parts not confirmed	A
    Malfunctioning parts confirmed	B

    B : GO TO STEP   17 

    A : GO TO NEXT STEP 

13. REFER TO  PROBLEM SYMPTOMS TABLE  

    Result 

    RESULT REFERENCE
    
    

    Result	Proceed to
    Malfunctioning circuit confirmed	A
    Malfunctioning parts confirmed	B

    B : GO TO STEP   17 

    A : GO TO NEXT STEP 

14. CHECK ECM POWER SOURCE CIRCUIT 

    NEXT 

15. CONDUCT CIRCUIT INSPECTION 

    Result 

    RESULT REFERENCE
    
    

    Result	Proceed to
    Malfunction not confirmed	A
    Malfunction confirmed	B

    B : GO TO STEP   18 

    A : GO TO NEXT STEP 

16. CHECK FOR INTERMITTENT PROBLEMS 

    NEXT 

    GO TO STEP   18 

17. CONDUCT PARTS INSPECTION 

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18. IDENTIFY PROBLEM 

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19. ADJUST AND/OR REPAIR 

    NEXT 

20. CONDUCT CONFIRMATION TEST 

    NEXT : END