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How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP 
    1. GO TO NEXT STEP 
  2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
    1. GO TO NEXT STEP 
  3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
    1. Check that there is no abnormality in the communication system by inspecting the communication function of the multiplex communication system with the hand-held tester.
      1. (ECU unconnected, communication line abnormal) Without code output, proceed to A.
      2. (ECU unconnected, communication line abnormal) With code output, proceed to B.
    1. B: GO TO MULTIPLEX COMMUNICATION SECTION 
    2. A: GO TO NEXT STEP 
  4. DIAGNOSIS CODE CHECK (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. Check the diagnosis code.
      1. Without code output, proceed to A.
      2. With code output, proceed to B.
    1. B: Go to step   7 
    2. A: GO TO NEXT STEP 
  5. PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  ) 
    1. Without applicable symptoms, proceed to A.
    2. With applicable symptoms, proceed to B.
    1. B: Go to step   7 
    2. A: GO TO NEXT STEP 
  6. PERFORM TROUBLESHOOTING IN FOLLOWING METHOD, DEPENDING ON MALFUNCTION SYMPTOM 
    1. Pre-check (See PRE-CHECK )
      1. Inspect with the hand-held tester (ECU data monitor).
      2. Inspect with the hand-held tester (Active test).
    2. Terminals of ECU (See TERMINALS OF ECU )
  7. ADJUSTMENT, REPAIR OR REPLACEMENT 
    1. GO TO NEXT STEP 
    2. END 
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