How To Proceed With Troubleshooting

Troubleshoot in accordance with the procedure on the following pages.

1. VEHICLE BROUGHT IN 
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 
3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE BODY MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Check that there is no abnormality in the communication system by inspecting the communication function of the body multiplex communication system with the hand-held tester.
      1. (ECU unconnected, communication line abnormal) Without code outputs, proceed to "A".
      2. (ECU unconnected, communication line abnormal) With code outputs, proceed to "B".

   B: GO TO  HOW TO PROCEED WITH TROUBLESHOOTING  ) 

   A 

4. (See  DIAGNOSTIC TROUBLE CODE CHART   ) 
   1. Check a DTC and note it if a code is output.
   2. Delete the DTC.
   3. Check if the DTC will be output once again, when the problem symptom is simulated based on the noted code.
      1. Without an output of the code, proceed to "A".
      2. With an output of the code, proceed to "B".

   B: Go to step   7 

   A 

5. (See  PROBLEM SYMPTOMS TABLE   ) 
   1. Without an applicable symptoms table, proceed to "A".
   2. With an applicable symptoms table, proceed to "B".

   B: Go to step   7 

   A 

6. ACCORDING TO PROBLEM SYMPTOM, PERFORM TROUBLESHOOTING 
   1. (See ON-VEHICLE INSPECTION )
   2. (See PRE-CHECK  )
      1. Inspection with the hand-held tester (ECU data list)
      2. Inspection with the hand-held tester (Active test)
   3. (See TERMINALS OF ECU  )
7. ADJUSTMENT, REPAIR OR REPLACE 

   END