How To Proceed With Troubleshooting

HINT:

Troubleshoot in accordance with the procedure on the following pages.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
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 (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
   2. A: Go To next Step 
4. DIAGNOSTIC TROUBLE CODE CHECK (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
   1. Check the diagnostic trouble 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 THE FOLLOWING METHOD, DEPENDING ON MALFUNCTION SYMPTOM 
   1. Pre-check (See PRE-CHECK )
      1. Check with hand-held tester (ECU data monitor).
      2. Check with hand-held tester (Active test).
   2. Terminals of ECU (See TERMINALS OF ECU )
7. ADJUSTMENT, REPAIR OR REPLACEMENT 

END