How To Proceed With Troubleshooting

HINT:

*: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
3. CONNECT INTELLIGENT TESTER TO DLC3* 

   HINT:

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

4. CHECK DTC AND FREEZE FRAME DATA* 

   HINT:

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

5. CLEAR DTC AND FREEZE FRAME DATA* 
6. CONDUCT VISUAL INSPECTION 
7. SET CHECK MODE DIAGNOSIS* 
8. CONFIRM PROBLEM SYMPTOMS 

   HINT:

   If the engine does not start, first perform the "check DTC" procedures and "conduct basic inspection" procedures below.

   RESULT CHART
   
   

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occurs	B

   B : GO TO STEP   10 

   A : Go to next step 

9. SIMULATE SYMPTOMS 
10. CHECK DTC* 
    RESULT CHART
    
    

    Result	Proceed to
    Malfunction code	A
    No code	B

    B : GO TO STEP   12 

    A : Go to next step 

11. REFER TO  DTC CHART  

    GO TO STEP   14 

12. CONDUCT BASIC INSPECTION 
    RESULT CHART
    
    

    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 CHART
    
    

    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 
15. CONDUCT CIRCUIT INSPECTION 
    RESULT CHART
    
    

    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 

    GO TO STEP   18 

17. CONDUCT PARTS INSPECTION 
18. IDENTIFY PROBLEM 
19. ADJUST, REPAIR OR REPLACE 
20. CONDUCT CONFIRMATION TEST