How To Proceed With Troubleshooting

HINT: 

• Use these procedures to troubleshoot the vehicle stability control system.
• *: Use the 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. CHECK COMMUNICATION FUNCTION OF LARGE-SCALE BODY MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the 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  Refer to MULTIPLEX COMMUNICATION SYSTEM

      A: Go to next step 

4. CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)* 
   1. Use the Techstream to check for normal functioning of the CAN communication system.
      1. Perform bus check (communication malfunction DTC).
         RESULT
         
         

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

      B → Go to CAN COMMUNICATION SYSTEM  Refer to CAN COMMUNICATION

      A: Go to next step 

5. CHECK FOR DTC* 
   1. Check for DTC and note any codes that are output.
   2. Clear the DTC.
   3. Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.
      RESULT
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

      B → Go to step   7 

      A: Go to next step 

6. 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   8 

   A: Go to next step 

7. 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 

8. REPAIR OR REPLACE 

   NEXT: Go to next step 

9. CONFIRMATION TEST 

   NEXT → END