How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the vehicle stability control system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

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 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 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 CHART
         
         

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

   B:  GO to CAN COMMUNICATION SYSTEM

   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 CHART
      
      

      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 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  8

   A: Go to Next Step 

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

   NEXT: END