How To Proceed With Troubleshooting

HINT: 

*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 

   NEXT: Go to next step 

3. CONNECT TECHSTREAM TO THE DLC3* 

   HINT: 

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

   NEXT: Go to next step 

4. CHECK DTC AND SAVE FREEZE FRAME DATA*. Refer to  DTC CHECK / CLEAR  . Refer to  FREEZE FRAME DATA  

   HINT: 

   Make sure to save freeze frame data because the data is necessary for a simulation test.

   NEXT: Go to next step 

5. CLEAR DTC AND FREEZE FRAME DATA*. Refer to  DTC CHECK / CLEAR  

   NEXT: Go to next step 

6. CONDUCT VISUAL INSPECTION 

   NEXT: Go to next step 

7. CONFIRM PROBLEM SYMPTOMS 

   Result

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occurs	B

   B → GO TO STEP 11 

   A: Go to next step 

8. DUPLICATE CONDITIONS THAT PRODUCE SYMPTOMS 

   NEXT: Go to next step 

9. CHECK FOR DTCS*. Refer to  DTC CHECK / CLEAR  

   Result

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

   B → GO TO STEP 11 

   A: Go to next step 

10. REFER TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

    NEXT → GO TO STEP 13 

11. CONDUCT BASIC INSPECTION 

    Result

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

    B → GO TO STEP 15 

    A: Go to next step 

12. CHECK ECU POWER SOURCE CIRCUIT 

    NEXT: Go to next step 

13. CONDUCT CIRCUIT INSPECTION 

    Result

    Result	Proceed to
    Malfunction not confirmed	A
    Malfunction confirmed	B

    B → GO TO STEP 16 

    A: Go to next step 

14. CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

    NEXT → GO TO STEP 16 

15. CONDUCT PARTS INSPECTION 

    NEXT: Go to next step 

16. IDENTIFY PROBLEM 

    NEXT: Go to next step 

17. ADJUST AND/OR REPAIR 

    NEXT: Go to next step 

18. CONDUCT CONFIRMATION TEST 

    NEXT → END