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 DLC3* 

   HINT: 

   If the display indicates a communication fault with the Techstream, inspect the DLC3. When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.

   NEXT: Go to next step 

4. CHECK DTC AND FREEZE FRAME DATA* 

   HINT: 

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

   NEXT: Go to next step 

5. CLEAR DTC AND FREEZE FRAME DATA* 

   NEXT: Go to next step 

6. CONDUCT VISUAL INSPECTION 

   NEXT: Go to next step 

7. SELECT CHECK MODE DIAGNOSIS* 

   HINT: 

   Refer to Check Mode Procedure, refer to CHECK MODE PROCEDURE .

   NEXT: Go to next step 

8. CONFIRM PROBLEM SYMPTOMS 

   HINT: 

   • Refer to Problem Symptoms Table, refer to PROBLEM SYMPTOMS TABLE .
   • If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occurs	B

   B → GO TO STEP 10 

   A: Go to next step 

9. SIMULATE SYMPTOMS 

   HINT: 

   Refer to Problem Symptoms Table, refer to PROBLEM SYMPTOMS TABLE .

   NEXT: Go to next step 

10. CHECK DTC* 

    HINT: 

    Refer to DTC Check / Clear, refer to DTC CHECK / CLEAR .

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

    B → GO TO STEP 12 

    A: Go to next step 

11. REFER TO DTC CHART 

    HINT: 

    Refer to Diagnostic Trouble Code Chart, refer to DIAGNOSTIC TROUBLE CODE CHART .

    NEXT: Go to next step 

12. CONDUCT BASIC INSPECTION 

    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 

    HINT: 

    Refer to Problem Symptoms Table, refer to PROBLEM SYMPTOMS TABLE .

    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 

    HINT: 

    Refer to ECM Power Source Circuit, refer to ECM Power Source Circuit .

    NEXT: Go to next step 

15. CONDUCT CIRCUIT INSPECTION 

    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 

    HINT: 

    Refer to Check for Intermittent Problems, refer to CHECK FOR INTERMITTENT PROBLEMS .

    NEXT: Go to next step 

17. CONDUCT PARTS INSPECTION 

    NEXT: Go to next step 

18. IDENTIFY PROBLEM 

    NEXT: Go to next step 

19. ADJUST AND/OR REPAIR 

    NEXT: Go to next step 

20. CONDUCT CONFIRMATION TEST 

    NEXT → END