How To Proceed With Troubleshooting

HINT:

*: Use the intelligent tester.

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

   HINT:

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

4. CHECK DTC AND SAVE FREEZE FRAME DATA* (See  DTC CHECK / CLEAR   ). (See  INFORMATION / FREEZE FRAME DATA   ) 

   HINT:

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

5. CLEAR DTC AND FREEZE FRAME DATA* (See  DTC CHECK / CLEAR   ) 
6. CONDUCT VISUAL INSPECTION 
7. CONFIRM PROBLEM SYMPTOMS 

   HINT:

   If the engine does not start, perform steps  9 and  11 first.

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occurs	B

   B:  GO TO STEP  10

   A: GO TO Next Step 

8. DUPLICATE CONDITIONS THAT PRODUCE SYMPTOMS 
9. CHECK FOR DTCS* (See  DTC CHECK / CLEAR   ) 

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   Trouble code	A
   No code	B

   B:  GO TO STEP  11

   A: GO TO Next Step 

10. REFER TO DIAGNOSTIC TROUBLE CODE CHART 

    NEXT:  GO TO STEP  13

11. CONDUCT BASIC INSPECTION 

    Result 

    RESULT CHART
    
    

    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 
13. CONDUCT CIRCUIT INSPECTION 

    Result 

    RESULT CHART
    
    

    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 (See  CHECK FOR INTERMITTENT PROBLEMS   ) 

    NEXT:  GO TO STEP  16

15. CONDUCT PARTS INSPECTION 
16. IDENTIFY PROBLEM 
17. ADJUST AND/OR REPAIR 
18. CONDUCT CONFIRMATION TEST 

    NEXT: END