How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the pre-collision system.
• *:Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT 

2. CHECK MULTIPLEX COMMUNICATION SYSTEM 
   1. Check for DTCs.
      DTC OUTPUT CHART
      
      

      DTC is not output	A
      DTC is output	B

   B :  GO TO MULTIPLEX COMMUNICATION SYSTEM

   A : Go to next step. 

3. CHECK CAN COMMUNICATION SYSTEM* 
   1. Check for DTCs.
      DTC OUTPUT CHART
      
      

      DTC is not output	A
      DTC is output	B

   B :  GO TO CAN COMMUNICATION SYSTEM

   A : Go to next step. 

4. CHECK FOR DTC* 
   1. Check for DTCs.
      1. Record the DTCs.
   2. Clear the DTCs.
   3. Recheck for DTCs.
      1. Simulate the malfunction and check if the DTCs are output again (See DIAGNOSTIC TROUBLE CODE CHART  ).
         DTC OUTPUT CHART
         
         

         DTC is output	A
         No DTC is output	B
         No DTC is output, and malfunction can't be simulated or checked	C

   B :  GO TO STEP  9

   C : SYMPTOM SIMULATION 

   A : Go to next step. 

5. DTC CHART* 

   NEXT 

6. CIRCUIT INSPECTION 

   NEXT 

7. REPAIR* 

   NEXT 

8. CONFIRMATION TEST 

   NEXT : END 

9. PROBLEM SYMPTOMS TABLE 

   NEXT 

10. ADJUST, REPAIR OR REPLACE 

    NEXT 

11. CONFIRMATION TEST 

    NEXT : END