How To Proceed With Troubleshooting

Techstream can be used in steps  3,  6,  9 and  12.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
3. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA 
4. PROBLEM SYMPTOM CONFIRMATION 
5. CHECK CAN COMMUNICATION SYSTEM 
   1. Check for output DTCs.

      HINT:

      The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, be sure to check that there is no trouble in the CAN communication system.

      DTC OUTPUT REFERENCE
      
      

      Result	Proceed To
      CAN communication system DTC not output	A
      CAN communication system DTC output	B

   B: CAN COMMUNICATION SYSTEM 

   A: Go To Next Step 

6. CHECK AND CLEAR DTCS 
7. PROBLEM SYMPTOM SIMULATION 
   RESULT REFERENCE
   
   

   Result	Proceed To
   Symptom does not occur	A
   Symptom occurs	B

   B:  GO TO STEP  9

   A: Go To Next Step 

8. SYMPTOM SIMULATION 
9. CHECK DTCS (OTHER THAN CAN SYSTEM DTCS) 
   DTC OUTPUT REFERENCE
   
   

   Result	Proceed To
   DTC not output	A
   DTC output	B

   B:  GO TO STEP  11

   A: Go To Next Step 

10. PROBLEM SYMPTOMS TABLE 

    NEXT:  GO TO STEP  12

11. DTC CHART 
12. CIRCUIT INSPECTION 
13. PROBLEM IDENTIFICATION 
14. REPAIR OR REPLACE 
15. CONFIRMATION TEST 

    NEXT: END