How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the push-button start function.
• *: Use the Techstream.

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 CAN COMMUNICATION SYSTEM* 
   1. Using the Techstream, check if the CAN communication system is functioning normally (see DIAGNOSIS SYSTEM ).

      Result 

      RESULT REFERENCE
      
      

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

      B:  GO TO DIAGNOSTIC TROUBLE CODE CHART 

      A: Go to next step. 

4. CHECK FOR DTC* 
   1. Check for DTCs and note any stored DTCs (see DTC CHECK/CLEAR  ).
   2. Delete the DTCs.
   3. Check whether the same DTC(s) relevant to the SFI system or smart access system with push-button start recurs by reproducing the symptoms indicated by the noted DTC(s) in the first step above.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC output does not reoccur	A
      SFI system DTC output reoccurs	B
      Smart access system with push-button start DTC output reoccurs	C

      B:  GO TO SFI SYSTEM

      C:  GO TO STEP  7

      A: Go to next step. 

5. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT REFERENCE
   
   

   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

   A: Go to next step. 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Terminals of ECU (see TERMINALS OF ECU  )
   2. DATA LIST/ACTIVE TEST (see DATA LIST/ACTIVE TEST  )
7. ADJUST, REPAIR OR REPLACE 
8. CONFIRMATION TEST 

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