How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the smart access system with push-button start.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

   If the voltage is below 11 V, recharge or replace the battery before proceeding.

3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

      Result 

      RESULT CHART
      
      

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

   B:  Go to MULTIPLEX COMMUNICATION SYSTEM

   A: Go to next step 

4. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT CHART
   
   

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

   B:  Go to step  6

   A: Go to next step 

5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. (see ON-VEHICLE INSPECTION  )
   2. DATA LIST/ACTIVE TEST
   3. Terminals of ECU
   4. Inspection
6. REPAIR OR REPLACEMENT 
7. CONFIRMATION TEST 

   NEXT: END