How To Proceed With Troubleshooting

NOTE: Troubleshoot in accordance with the procedure in the following article.

VEHICLE BROUGHT TO WORKSHOP
CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK (See CUSTOMER PROBLEM ANALYSIS CHECK )
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 body 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. A : Go To Next Step.
2. B : GO TO BODY MULTIPLEX COMMUNICATION SECTION (See HOW TO PROCEED WITH TROUBLESHOOTING )
CHECK DIAGNOSTIC TROUBLE CODE (See DIAGNOSTIC TROUBLE CODE CHART )
1. Check a DTC and note it down 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.
1. A : Go To Next Step.
2. B : Go to step 7
PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
1. Without applicable symptoms, proceed to A.
2. With applicable symptoms, proceed to B.
1. A : Go To Next Step.
2. B : Go to step 7
PERFORM TROUBLESHOOTING IN THE FOLLOWING METHOD, DEPENDING ON MALFUNCTION SYMPTOM
1. Pre-check (See PRE-CHECK ).
  1. Inspection with the hand-held tester (ECU DATA MONITOR).
  2. Inspection with the hand-held tester (ACTIVE TEST).
2. Terminals of ECU (See TERMINALS OF ECU ).
ADJUSTMENT, REPAIR OR REPLACEMENT
1. END