How To Proceed With Troubleshooting

HINT:

*. Use the intelligent tester or Techstream.

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

   HINT:

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

4. CHECK DTC AND SAVE FREEZE FRAME DATA*  :

   (See DTC CHECK / CLEAR ).

   (See 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 REFERENCE
   
   

   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 REFERENCE
   
   

   Result	Proceed to
   Trouble code	A
   No code	B

   B:  Go to STEP  11

   A: Go to next step 

10. REFER TO DTC CHART  (See DIAGNOSTIC TROUBLE CODE CHART  )

    NEXT:  Go to STEP  13

11. CONDUCT BASIC INSPECTION 

    Result 

    RESULT REFERENCE
    
    

    Result	Proceed to
    Malfunction parts not confirmed	A
    Malfunction 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 REFERENCE
    
    

    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