How To Proceed With Troubleshooting

HINT:

Troubleshoot in accordance with the procedures on the following pages.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS CHECK AND PROBLEM SYMPTOM 
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 outputs, proceed to  A.
      2. (ECU unconnected, communication line abnormal) With code outputs, proceed to  B.
   1. B: GO TO MULTIPLEX COMMUNICATION SECTION (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   2. A: Go to next step 
4. DTC CHECK (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
   1. Check for a diagnostic trouble code.
      1. Without code outputs, proceed to  A.
      2. With code outputs, proceed to  B.
   1. B: Go to step   6 
   2. A: Go to next step 
5. (See  PROBLEM SYMPTOMS TABLE  ) 
   1. When problem is not listed on problem symptoms table, proceed to  A.
   2. When problem is listed on problem symptoms table, proceed to  B.
   1. B: Go to step   7 
   2. A: Go to next step 
6. PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM 
   1. (See PRE-CHECK ).
      1. Inspection with the hand-held tester (ECU DATA LIST).
      2. Inspection with the hand-held tester (ACTIVE TEST).
   2. On-vehicle inspection (See INSPECTION ).
   3. Inspection (See INSPECTION ).
   4. (See TERMINALS OF ECU ).
7. ADJUST, REPAIR OR REPLACE 

   END