How To Proceed With Troubleshooting

HINT: 

• *: Use the Techstream
• Use the following procedure to troubleshoot the plug-in charge control system.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 

   NEXT: Go to next step 

3. CONNECT TECHSTREAM TO THE DLC3* 

   HINT: 

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

   NEXT: Go to next step 

4. CHECK DTC AND SAVE FREEZE FRAME DATA*. Refer to  DTC CHECK / CLEAR  

   HINT: 

   • If any of the CAN communication system DTCs is output, troubleshoot and repair the CAN communication system first. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
   • If the Freeze Frame Data item "On-Board Charger Input Voltage" shows 270 V or more, there is a possibility that the charging voltage was higher than standard voltage, causing a DTC to be output. When performing a reproduction test, plug-in charge the vehicle at the standard voltage (100 to 240 V), then check for DTCs.

   NEXT: Go to next step 

5. CHECK CHARGE CANCEL HISTORY. Refer to  UTILITY  

   NEXT: Go to next step 

6. CLEAR DTC AND FREEZE FRAME DATA*. Refer to  DTC CHECK / CLEAR  

   NEXT: Go to next step 

7. CONDUCT VISUAL INSPECTION 

   NEXT: Go to next step 

8. CONFIRM PROBLEM SYMPTOMS 
   RESULT:
   
   

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

   B → GO TO STEP 11 

   A: Go to next step 

9. DUPLICATE CONDITIONS THAT PRODUCE SYMPTOMS 

   NEXT: Go to next step 

10. CHECK FOR DTCS*. 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. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

    HINT: 

    DTCs for the hybrid control system and hybrid battery system are displayed using the same menus on the Techstream. It is necessary to check the DTC charts for hybrid control system and hybrid battery system.

    • Hybrid Control System - DTC chart. Refer to DIAGNOSTIC TROUBLE CODE CHART
    • Hybrid Battery System - DTC chart. Refer to DIAGNOSTIC TROUBLE CODE CHART

    NEXT → GO TO STEP 14 

12. CONDUCT BASIC INSPECTION 

    Result

    Result	Proceed to
    Malfunctioning parts not confirmed.	A
    Malfunctioning parts confirmed.	B

    B → GO TO STEP 16 

    A: Go to next step 

13. CHECK ECU POWER SOURCE CIRCUIT 

    NEXT: Go to next step 

14. CONDUCT CIRCUIT INSPECTION 

    Result

    Result	Proceed to
    Malfunction not confirmed.	A
    Malfunction confirmed.	B

    B → GO TO STEP 17 

    A: Go to next step 

15. CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS  

    NEXT → GO TO STEP 17 

16. CONDUCT PARTS INSPECTION 

    NEXT: Go to next step 

17. IDENTIFY PROBLEM 

    NEXT: Go to next step 

18. ADJUST AND/OR REPAIR 

    NEXT: Go to next step 

19. CONDUCT CONFIRMATION TEST 

    NEXT → END