How To Proceed With Troubleshooting

HINT: 

• Use this procedure to troubleshoot the theft deterrent system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 
   1. Interview the customer to confirm the trouble. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      NEXT: Go to next step 

3. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the Techstream to check for normal function of the multiplex communication system. Refer to DTC CHECK / CLEAR .
      RESULT
      
      

      Result	Proceed to
      DTC is not output	A
      DTC is output	B

      B → GO TO MULTIPLEX COMMUNICATION INFORMATION. Refer to  DIAGNOSTIC TROUBLE CODE CHART 

      A: Go to next step 

4. SYMPTOM SIMULATION 

   NEXT: Go to next step 

5. PROBLEM SYMPTOMS TABLE 
   1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .

      Result	Proceed to
      Fault is not listed in problem symptoms table	A
      Fault is listed in problem symptoms table	B

      B → Go to step 7  7 

      A: Go to next step 

6. PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM* 
   1. Terminals of ECU. Refer to TERMINALS OF ECU 
   2. System Description. Refer to SYSTEM DESCRIPTION 
   3. Data List/Active Test. Refer to DATA LIST / ACTIVE TEST 

      NEXT: Go to next step 

7. REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END