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 in 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* 
   1. Check for DTCs. Refer to DTC CHECK / CLEAR  and freeze frame data. Refer to 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* 
   1. Clear the DTCs and freeze frame data. Refer to DTC CHECK / CLEAR .

      NEXT: Go to next step 

6. CONDUCT VISUAL INSPECTION 

   NEXT: Go to next step 

7. SELECT CHECK MODE DIAGNOSIS* 
   1. Switch the ECM from normal mode to check mode.

      HINT: 

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

      NEXT: Go to next step 

8. CONFIRM PROBLEM SYMPTOMS 
   1. Confirm problem symptoms.

      HINT: 

      If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

      RESULT
      
      

      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 Symptom Simulation. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

   NEXT: Go to next step 

10. CHECK DTC* 
    1. Check for DTCs.

       HINT: 

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

       RESULT
       
       

       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 
    1. Conduct basic inspection.

       HINT: 

       Refer to Basic Inspection. Refer to BASIC INSPECTION .

       RESULT
       
       

       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
    
    

    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 
    1. Check the 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
    
    

    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 
    1. 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