How To Proceed With Troubleshooting: Notes

HINT:

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

1. VEHICLE BROUGHT TO WORKSHOP 
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 ).
   DIAGNOSTIC TROUBLE CODE 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* 
6. CIRCUIT INSPECTION 
7. REPAIR* 
8. CONFIRMATION TEST 

   NEXT: END 

9. PROBLEM SYMPTOMS TABLE 
10. ADJUST, REPAIR OR REPLACE 
11. CONFIRMATION TEST 

    NEXT: END