How To Proceed With Troubleshooting

HINT: 

• Perform troubleshooting in accordance with the following flowchart.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

   NEXT: Go to next step 

3. CHECK AND CLEAR DTCs* 

   NEXT: Go to next step 

4. PROBLEM SYMPTOM CONFIRMATION 

   Result

   Result	Proceed to
   Symptom does not occur.	A
   Symptom occurs.	B

   B → GO TO   6 STEP 6 

   A: Go to next step 

5. SYMPTOM SIMULATION 

   NEXT: Go to next step 

6. CHECK CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally. Refer to DIAGNOSIS SYSTEM .

      Result

      Result	Proceed to
      CAN communication DTC is not output.	A
      CAN communication DTC is output.	B

      B → GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

7. CHECK LIN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the LIN communication system is functioning normally. Refer to DTC CHECK / CLEAR .

      Result

      Result	Proceed to
      LIN communication DTC is not output.	A
      LIN communication DTC is output.	B

      B → GO TO LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

8. DTC CHECK* 
   1. Check for DTCs. Refer to DTC CHECK / CLEAR .

      Result

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

      A → GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      B: Go to next step 

9. PROBLEM SYMPTOMS TABLE 

   Result

   Result	Proceed to
   Fault is not listed in Problem Symptoms Table.	A
   Fault is listed in Problem Symptoms Table.	B

   B → GO TO   11 STEP 11 

   A: Go to next step 

10. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Terminals of ECU. Refer to TERMINALS OF ECU 
    2. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST 

       NEXT: Go to next step 

11. REPAIR OR REPLACEMENT 

    NEXT: Go to next step 

12. CONFIRMATION TEST* 

    NEXT → END