How To Proceed With Troubleshooting [12/2019 - 10/2021]: 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. Inspect the auxiliary battery voltage with the ignition switch off.

   Standard Voltage

   11 to 14 V

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

2. Check the fuses and relays.
3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
4. Using the GTS, check the Data List item "Operation Limitation Control History Count".

   Refer to DATA LIST / ACTIVE TEST [12/2019 - 10/2021]

   Body Electrical > Air Conditioner > Data List 

   Tester Display
   Operation Limitation Control History Count (Level1)
   Operation Limitation Control History Count (Level2)

   HINT: 

   If a value other than zero is displayed for "Operation Limitation Control History Count (Level1)" or "Operation Limitation Control History Count (Level2)", air conditioning system operation may have been limited in the past. If the operation is still limited, the message "High Power Consumption Partial Limit on AC/Heater Operation" will be displayed on the multi-information display in the combination meter assembly. In this case, inspect the charging system.

   Refer to ON-VEHICLE INSPECTION [12/2019 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

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

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021]

   Result

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021]

Result: 

A 

See step  5

1. Check for DTCs and note any codes that are output.
   1. Air Conditioner

      Body Electrical > Air Conditioner > Trouble Codes 

   2. Hybrid Control (for P1C7C-49)

      Powertrain > Hybrid Control > Trouble Codes 

   3. Main Body (for B1279)

      Body Electrical > Main Body > Trouble Codes 

   4. Rain and/or Humidity Sensor (for B14A8 / B14A9 / B14AA)

      Body Electrical > Rain and/or Humidity Sensor > Trouble Codes 

2. Clear the DTCs.
   1. Air Conditioner

      Body Electrical > Air Conditioner > Clear DTCs 

   2. Hybrid Control (for P1C7C-49)

      Powertrain > Hybrid Control > Clear DTCs 

   3. Main Body (for B1279)

      Body Electrical > Main Body > Clear DTCs 

   4. Rain and/or Humidity Sensor (for B14A8 / B14A9 / B14AA)

      Body Electrical > Rain and/or Humidity Sensor > Clear DTCs 

3. Recheck for DTCs. Based on the DTCs output above, try to force output of the air conditioning system DTC by simulating the operation indicated by the DTC.
   1. Air Conditioner

      Body Electrical > Air Conditioner > Trouble Codes 

   2. Hybrid Control (for P1C7C-49)

      Powertrain > Hybrid Control > Trouble Codes 

   3. Main Body (for B1279)

      Body Electrical > Main Body > Trouble Codes 

   4. Rain and/or Humidity Sensor (for B14A8 / B14A9 / B14AA)

      Body Electrical > Rain and/or Humidity Sensor > Trouble Codes 

   Result

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

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021]

Result: 

A 

See step  6

1. Operate each switch on the air conditioning control assembly and check that the switches of the air conditioning system operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

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

Result: 

OK 

See step  7

1. Operate the blower switch on the air conditioning control assembly and check that the blower control operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

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

Result: 

OK 

See step  8

1. Operate the recirculation/fresh switch on the air conditioning control assembly and check that the air inlet control operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

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

Result: 

OK 

See step  9

1. Operate the air outlet mode switch on the air conditioning control assembly and check that the air outlet control operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

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

Result: 

OK 

See step  10

1. Operate the temperature adjustment switches on the air conditioning control assembly and check that cool air is blown from the registers.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

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

Result: 

OK 

See step  11

1. Operate the temperature adjustment switches on the air conditioning control assembly and check that warm air is blown from the air registers.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE 

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

Result: 

OK 

See step  12

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

Result

Result: 

NEXT 

See step  13

Result

Result: 

NEXT 

END