AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System) HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   

   NEXT

2. 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.

      Result
      Proceed to NEXT

   
   

   NEXT

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

   
   

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

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

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM Click here

   A

4. CHECK FOR DTC*

   
   

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

      
      Body Electrical > Air Conditioner > Trouble Codes

   2. Clear the DTCs.

      
      Body Electrical > Air Conditioner > Clear DTCs

   3. Recheck for DTCs. Based on the DTCs output above, try to force output of the A/C system DTC by simulating the operation indicated by the DTC.

      
      Body Electrical > Air Conditioner > Trouble Codes

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

   
   

   B

   GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

   A

5. 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

   
   

   B

   GO TO STEP 7 Click here

   A

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

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

   2. Data List / Active Test.

      Click here

   3. Terminals of ECU.

      Click here

   4. On-vehicle Inspection.

   5. Inspection.

      Result
      Proceed to NEXT

   
   

   NEXT

7. ADJUST , REPAIR OR REPLACE

   Result
   Proceed to NEXT

   
   

   NEXT

   END