How To Proceed With Troubleshooting

HINT:

*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
3. CONNECT TECHSTREAM TO DLC3 

   HINT:

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

   When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.

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 For DTC" procedure and "Conduct Basic Inspection" procedure below.

   Result 

   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 FOR DTC* 

    Result 

    RESULT CHART
    
    

    Result	Proceed to
    Trouble code output	A
    No trouble code output	B

    B:  GO TO STEP  12

    A: Go to next step 

11. REFER TO DTC CHART 
12. CONDUCT BASIC INSPECTION 

    Result 

    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 

    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 

    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 
17. CONDUCT PARTS INSPECTION 
18. IDENTIFY PROBLEM 
19. ADJUST AND/OR REPAIR 
20. CONDUCT CONFIRMATION TEST 

    NEXT: END