How To Proceed With Troubleshooting [12/2019 - 10/2022]: Procedure

Result

Result: 

NEXT 

See step  2

• When 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 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 that condensation is not likely to occur in the cabin and that the temperature is not high or extremely low in the cabin.

   OK

   Condensation is not likely being produced and the temperature is not high or extremely low.

   HINT: 

   • A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.
   • The rear seat entertainment 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
   OK
   NG

Result: 

NG 

SET CABIN TO APPROPRIATE TEMPERATURE 

Result: 

OK 

See step  5

1. Check for DTCs.

   Body Electrical > Navigation System > Trouble Codes 

   Result

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

Result: 

B 

See step  8

Result: 

A 

See step  6

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

   HINT: 

   The present DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Recheck for DTCs.

   Body Electrical > Navigation System > Trouble Codes 

   Result

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

   HINT: 

   • Even if the problem symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.
   • If the system cannot enter diagnostic mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits and repair or replace the problem part.

     Refer to AVC-LAN Circuit [12/2019 - 10/2022]

   • Check for DTCs and inspect the area that the code indicates.

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2022]  

Result: 

A 

See step  8

1. Refer to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [12/2019 - 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 symptoms do not recur and no DTCs are output, attempt to reproduce the symptoms.

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

Result: 

B 

See step  10

Result: 

A 

See step  9

1. Refer to Terminals of ECU.

   Refer to TERMINALS OF ECU [12/2019 - 10/2022] 

2. Refer to Operation Check.

   Refer to OPERATION CHECK [12/2019 - 10/2022] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

1. Adjust, repair or replace as necessary.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. After clearing DTCs, recheck for DTCs.

   Body Electrical > Navigation System > Clear DTCs 

   Body Electrical > Navigation System > Trouble Codes 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

Result

Result: 

NEXT 

END