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

Result

Result: 

NEXT 

See step  2

HINT: 

• In troubleshooting, check 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 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 HV Model
   1. Measure the auxiliary battery voltage with the ignition switch off.

      Standard Voltage

      11 to 14 V

      HINT: 

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

2. for Gasoline Model
   1. Measure the auxiliary battery voltage.

      Standard Voltage

      11 to 14 V

      HINT: 

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Check if CAN communication system DTCs are output.

   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] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

   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] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [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 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] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

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] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

Result: 

A 

See step  5

1. Check for DTCs.

   Safety connect system: Refer to DTC CHECK / CLEAR [12/2019 - ]

   Telematics system: Refer to DTC CHECK / CLEAR [12/2019 - ] 

   Body Electrical > Telematics > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output.	A
   Safety connect system DTCs are output.	B
   Telematics system DTCs are output.	C

Result: 

B 

GO TO SAFETY CONNECT SYSTEM 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

Result: 

C 

GO TO TELEMATICS SYSTEM 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - ] 

Result: 

A 

See step  6

1. Check for vehicle control history and note any codes that are output.

   Body Electrical > Telematics > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Result

   Result	Proceed to
   No vehicle control history is output	A
   Any vehicle control history is output	B

Result: 

B 

GO TO VEHICLE CONTROL HISTORY 

Refer to VEHICLE CONTROL HISTORY [12/2019 - 10/2022] , or refer to VEHICLE CONTROL HISTORY [10/2022 - ]

Result: 

A 

See step  7

1. Refer to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [12/2019 - 10/2022] , or refer to PROBLEM SYMPTOMS TABLE [10/2022 - ] 

   Result

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

   HINT: 

   If the symptom does not recur and no DTCs are output, perform the simulation method.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ]

Result: 

B 

See step  9

Result: 

A 

See step  8

1. Terminals of ECU

   Refer to TERMINALS OF ECU [12/2019 - 10/2021] , or refer to TERMINALS OF ECU [10/2021 - 10/2022] , or refer to TERMINALS OF ECU [10/2022 - ] 

2. Data List / Active Test

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

Result

Result: 

NEXT 

See step  10

Result

Result: 

NEXT 

END