How To Proceed With Troubleshooting [10/2022 - ]: Procedure

Result

Result: 

NEXT 

See step  2

• When 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 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. Measure the auxiliary battery voltage with the ignition switch off.

   Standard voltage

   11 to 14 V

2. Visually inspect for blown fuses, an open or short in a wire harness or improperly connected connectors, etc.

   OK

   Not abnormal

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Check that condensation is not likely to occur in the cabin and that the temperature is not -20°C (-4°F) or lower, or 65°C (149°F) or higher.

   HINT: 

   • A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.
   • The audio and visual system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Refer to Check System Normal Condition.

   Refer to OPERATION CHECK [10/2022 - ] 

   Result

   Result	Proceed to
   Symptom is not normal operation.	A
   Symptom is normal operation.	B

Result: 

B 

END 

Result: 

A 

See step  6

1. Using the GTS, select "Communication Bus Check" and check that all ECUs and sensors connected to the CAN communication system are displayed on the screen.

   for Gasoline Model: Refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023] , or refer to DIAGNOSIS SYSTEM [11/2023 - ]

   for HV Model: Refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023] , or refer to DIAGNOSIS SYSTEM [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 [10/2022 - 11/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

for HV Model: 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  7

HINT: 

Using the GTS, check for DTCs.

1. Check for DTCs.
   1. Record the results of any DTCs (latest/confirmed)

      Body Electrical > Navigation System > Trouble Codes 

      HINT: 

      • Check the freeze frame data for both latest DTCs and confirmed DTCs.
      • If freeze frame data is stored, a snow icon is displayed to the left.

      Item	Details
      Test Failed	Indicates the latest malfunction judgment results during the current trip
      Confirmed	Indicates DTCs that have been confirmed

2. Clear the DTCs.
3. Recheck for DTCs.
   1. Based on the detection conditions of the DTCs, simulate the malfunction conditions and check if the DTCs are output again.

      Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2023 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

      HINT: 

      If DTCs are output during the speaker line continuity inspection for a vehicle equipped with a stereo component amplifier assembly, refer to Utility.

      Refer to UTILITY [10/2022 - ] 

   Result

   Result	Proceed to
   DTCs are not output (symptoms can be confirmed or reproduced)	A
   DTCs are not output (symptoms cannot be confirmed or reproduced)	B
   DTCs are output.	C

Result: 

B 

GO TO HOW TO PROCEED WITH TROUBLESHOOTING 

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

Result: 

C 

GO TO DIAGNOSTIC TROUBLE CODE CHART 

Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2023 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

Result: 

A 

See step  8

1. Using the GTS, check for vehicle control history (RoB).

   Body Electrical > Navigation System > Utility 

   Tester Display
   Vehicle Control History (RoB)

2. If vehicle control history (RoB) is output, record it.

   Result

   Result	Proceed to
   Vehicle control history (RoB) is not output	A
   Vehicle control history (RoB) is output	B

Result: 

B 

GO TO VEHICLE CONTROL HISTORY (RoB) 

Refer to VEHICLE CONTROL HISTORY (RoB) [10/2022 - ]

Result: 

A 

See step  9

1. Refer to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [10/2022 - 11/2024] , or refer to PROBLEM SYMPTOMS TABLE [11/2024 - ]

   Result

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

Result: 

B 

See step  11

Result: 

A 

See step  10

1. Refer to DIAGNOSIS SYSTEM

   Refer to DIAGNOSIS SYSTEM [10/2022 - ]

2. Refer to Terminals of ECU.

   Refer to TERMINALS OF ECU [10/2022 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

Result

Result: 

NEXT 

See step  12

Result

Result: 

NEXT 

See step  13

Result

Result: 

NEXT 

END