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How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP 
  2. CUSTOMER PROBLEM ANALYSIS 
  3. CHECK AND CLEAR DTCs 
    1. Refer to the diagnostic check/clear (See DTC CHECK/CLEAR ).
  4. PROBLEM SYMPTOM CONFIRMATION 
    • SYMPTOM DOES NOT OCCUR (Go to step   5 ) 
    • SYMPTOM OCCURS (Go to step   6 ) 
  5. SYMPTOM SIMULATION 
  6. CHECK DTC 
    • DTC IS OUTPUT (Go to step   10 ) 
    • DTC IS NOT OUTPUT (Go to step   7 ) 
  7. CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM 
    1. Refer to the navigation system (See PROBLEM SYMPTOMS TABLE ).
    • THE SYMPTOM APPEARS (FOLLOW THE NAVIGATION SYMPTOM TABLE TO PERFORM TROUBLESHOOTING) 
    • THE SYMPTOM DOES NOT APPEAR (Go to step   8 ) 
  8. PROBLEM SYMPTOMS TABLE 
    1. Refer to the problem symptoms table (See PROBLEM SYMPTOMS TABLE  ).
    • THE CORRESPONDING SYMPTOM EXISTS (Go to step   10 ) 
    • THE CORRESPONDING SYMPTOM DOES NOT EXIST (Go to step   9 ) 
  9. BASED ON THE MALFUNCTION SYMPTOM, PERFORM TROUBLESHOOTING BELOW 
    1. See TERMINALS OF ECU  .
  10. ADJUST, REPAIR OR REPLACE 
  11. CONFIRMATION TEST 

    END 

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