How To Proceed With Troubleshooting

VEHICLE BROUGHT TO WORKSHOP
- GO TO NEXT STEP
CUSTOMER PROBLEM ANALYSIS CHECK AND PROBLEM SYMPTOM CONFIRMATION
- GO TO NEXT STEP
INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE BODY MULTIPLEX COMMUNICATION SYSTEM (BEAN)
1. Check there is no abnormality in the communication system by inspecting the communication function of the body multiplex communication system with 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. A: Go to next step.
2. B: GO TO MULTIPLEX COMMUNICATION SYSTEM (See DIAGNOSTIC TROUBLE CODE TABLE )
PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
1. Without an applicable problem symptom table, proceed to A.
2. With an applicable problem symptom table, proceed to B.
1. A: Go to next step.
2. B: Go to step 7
ACCORDING TO PROBLEM SYMPTOM, PERFORM TROUBLESHOOTING
1. (See PRE-CHECK )
2. (See TERMINALS OF ECU )
3. INSPECTION (See INSPECTION PROCEDURE )
- GO TO NEXT STEP
ADJUST, REPAIR OR REPLACE
- GO TO NEXT STEP
CONFIRMATION TEST
END