AIR CONDITIONING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   INSPECT BATTERY VOLTAGE

   
   

   1. Inspect the battery voltage.

      Standard Voltage
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the 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.

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
3. Click here

   CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

   
   

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

      Click here

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

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEMClick here

4. Click here

   CHECK FOR DTC*

   
   

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

      Click here

      
      
      1. Body Electrical > Air Conditioner > Trouble Codes
      2. 
         
      3. 
         

   2. Clear the DTCs.

      Click here

      
      
      1. Body Electrical > Air Conditioner > Clear DTCs
      2. 
         
      3. 
         

   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.

      Click here

      
      
      1. Body Electrical > Air Conditioner > Trouble Codes
      2. 
         
      3. 
         

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

   
   
   • AClick here
   • B

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here

5. Click here

   PROBLEM SYMPTOMS TABLE

   
   

   1. Refer to Problem Symptoms Table.

      Click here

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

   
   
   • AClick here
   • B

     GO TO PROBLEM SYMPTOMS TABLEClick here

6. Click here

   OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Panel diagnosis (indicator check, sensor check).

      Click here

   2. Data List / Active Test.

      Click here

   3. Terminals of ECU.

      Click here

   4. On-vehicle Inspection.

   5. Inspection.

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
7. Click here

   ADJUST, REPAIR OR REPLACE

   Result
   Proceed to NEXT

   
   
   • NEXT

     END