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Air Conditioning System Check: Notes

To ensure that system diagnosis is done accurately and smoothly, read Precautions for Diagnosing Trouble  and follow the following flow.

Step Action Yes No
1  Customer complaint analysis 
  1. Perform "Customer Complaint Analysis ".

Was customer complaint analysis performed according to instruction? 		 Go to Step 2. Perform customer complaint analysis.
2  Visual inspection 
  1. Perform "Visual Inspection ".

Is there any faulty condition? 		 Repair or replace malfunction part. Go to Step 3.
3  DTC check 
  1. Perform "DTC Check ".

Is it malfunction code? 		 Go to Step 4. Go to Step 5.
4  Troubleshooting for DTC 
  1. Check and repair according to DTC diag. flow.

Are check and repair completed? 		 Go to Step 7. Check and repair malfunction part(s).
5  Check for intermittent problem 
  1. Check for Intermittent Problem .

Is there faulty condition? 		 Repair or replace malfunction part(s). Go to Step 6.
6  Air conditioning system symptom diagnosis 
  1. Inspect and repair referring to A/C SYSTEM SYMPTOM DIAGNOSIS .

Are inspect and repair complete? 		 Go to Step 7. Inspect and repair malfunction part(s).
7  Final confirmation test 
  1. Perform DTC Check .

Is there any DTC? 		 Go to Step 4. Air Conditioning system is good condition.
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