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Diagnostic Procedure

  1. STEP 1. Check other diagnostic trouble codes. 

    Q: Are other diagnostic trouble codes set? 

    1. YES:  Go to the appropriate troubleshooting.
    2. NO:  Go to Step 2.
  2. STEP 2. Line pressure check 

    Carry out "hydraulic test" (Refer to HYDRAULIC PRESSURE TEST  ).

    Q: Is the check result normal? 

    1. YES:  Go to Step 3.
    2. NO:  Repair according to the hydraulic pressure test diagnosis table.
  3. STEP 3. Symptom recheck after erasing diagnostic trouble code 

    Q: Is the check result normal? 

    1. YES:  Intermittent malfunction
    2. NO:  Replace TCM.
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