How To Proceed With Troubleshooting [12/2019 - 11/2023]: Procedure

Result

Result: 

NEXT 

See step  2

HINT: 

• In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
• The following 5 items are important points for problem analysis:

  What	Vehicle model, system name
  When	Date, time, occurrence frequency
  Where	Road conditions
  Under what conditions?	Driving conditions, weather conditions
  How did it happen?	Problem symptoms

Result

Result: 

NEXT 

See step  3

1. For Gasoline Model:
   1. Measure the auxiliary battery voltage.

      Standard Voltage

      11 to 14 V

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

2. For HV Model:
   1. Measure the auxiliary battery voltage with the ignition switch off.

      Standard Voltage

      11 to 14 V

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

3. Check the fuses and relays.
4. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Using the GTS, check for CAN communication system DTCs.

   For Gasoline Model: Refer to DIAGNOSIS SYSTEM [12/2019 - 09/2020] , or refer to DIAGNOSIS SYSTEM [09/2020 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023]

   For HV Model: Refer to DIAGNOSIS SYSTEM [12/2019 - 09/2020] , or refer to DIAGNOSIS SYSTEM [09/2020 - 10/2021] , or refer to DIAGNOSIS SYSTEM [10/2021 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023]

   Result

   Result	Proceed to
   CAN DTCs are not output	A
   CAN DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

For Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 11/2023]

For HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 11/2023]

Result: 

A 

See step  5

1. Refer to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [12/2019 - 11/2023] 

   Result

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

Result: 

B 

GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2019 - 11/2023]  

Result: 

A 

See step  6

1. Operation Check.

   Refer to OPERATION CHECK [12/2019 - 11/2023] 

2. Terminals of ECU.

   Refer to TERMINALS OF ECU [12/2019 - 11/2023] 

3. Data List / Active Test.

   Refer to DATA LIST / ACTIVE TEST [12/2019 - 11/2023] 

4. Inspection.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

Result

Result: 

NEXT 

See step  8

Result

Result: 

NEXT 

END