How To Proceed With Troubleshooting

HINT: 

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

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

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

   NEXT: Go to next step 

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

      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. CHECK FOR DTC* 
   1. Check for DTC and note any codes that are output.
   2. Delete DTC.
   3. Recheck DTC.
      RESULT
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

      B → GO TO DIAGNOSTIC TROUBLE CODE CHART 

      A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 
   RESULT
   
   

   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. Refer to TERMINALS OF ECU 
   2. 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