How To Proceed With Troubleshooting

HINT:

• Use this procedure to troubleshoot the theft deterrent system.
• The hand-held tester should be used in step  3.

1. VEHICLE BROUGHT TO WORKSHOP 
   1. NEXT: Go to next step. 
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (SEE  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
   1. NEXT: Go to next step. 
3. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the hand-held tester to check for normal function of the multiplex communication system.
      1. (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A.
      2. (ECU unconnected, communication line malfunctioning) 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. PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
   1. If the fault is not listed in the problem symptoms table, proceed to A.
   2. If the fault is listed in the problem symptoms table, proceed to B.
   1. B : Go to step   6 
   2. A : Go to next step. 
5. PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM 
   1. Terminals of ECU (see TERMINALS OF ECU )
   2. On-vehicle inspection (see ON-VEHICLE INSPECTION )
6. ADJUST, REPAIR OR REPLACE 
   1. NEXT: Go to next step. 
7. CONFIRMATION TEST 
   1. NEXT: END