How To Proceed With Troubleshooting

HINT:

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

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

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

   NEXT: Go to next step 

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
      
      

      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
   
   

   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 (see ACTUATOR CHECK  ).
   2. DATA LIST / ACTIVE TEST (see DATA LIST / ACTIVE TEST  )
   3. Terminals of ECU (see TERMINALS OF ECU  ).

   NEXT: Go to next step 

6. ADJUST, REPAIR OR REPLACE 

   NEXT: END