How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the air conditioning system.
• *: Using the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

3. CHECK FOR DTC 
   1. Check for DTCs and note any codes that are output (see DTC CHECK/CLEAR  ).
   2. Delete the DTC.
   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.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC is not output	A
      DTC is output	B

   B: Go to step   6 

   A: GO TO NEXT STEP 

4. PROBLEM SYMPTOMS TABLE 

   Refer to the PROBLEM SYMPTOMS TABLE  .

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Fault is not listed in problem symptoms table	A
   Fault is listed in problem symptoms table	B

   B: Go to step   6 

   A: GO TO NEXT STEP 

5. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. ACTUATOR CHECK  .
   2. DATA LIST/ACTIVE TEST  .*
   3. TERMINALS OF ECU  .
6. ADJUST, REPAIR OR REPLACE 

   END