How To Proceed With Troubleshooting

VEHICLE BROUGHT TO WORKSHOP
- GO TO NEXT STEP
(See CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK )
- GO TO NEXT STEP
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 SYSTEM - DIAGNOSIS
2. A: GO TO NEXT STEP.
(See DIAGNOSIS CODE CHECK )
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.
(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.
PERFORM TROUBLESHOOTING IN FOLLOWING METHOD, DEPENDING ON MALFUNCTION SYMPTOM
1. (See PRE-CHECK )
  1. Inspect with the hand-held tester (ECU data monitor).
  2. Inspect with the hand-held tester (Active test).
2. (See TERMINALS OF ECU )
ADJUSTMENT, REPAIR OR REPLACEMENT
END