How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the push-button start function.
• *: 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. CHECK FOR DTC* 
   1. Check for DTC and note any codes that are output.
   2. Delete DTC.
   3. Recheck DTC.

      Result 

      RESULT CHART
      
      

      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 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  7

   A: Go to next step 

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

   NEXT: END