How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the pre-collision system.
• *: 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. CHECK MULTIPLEX COMMUNICATION SYSTEM* 
   1. Using the intelligent tester, check if the multiplex communication system (MPX) is functioning normally (see DTC CHECK / CLEAR  ).

      Result: 

      RESULT REFERENCE
      
      

      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 CAN COMMUNICATION SYSTEM* 
   1. Using the intelligent tester, check if the CAN communication system is functioning normally.

      Result: 

      RESULT REFERENCE
      
      

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

   B:  GO TO CAN COMMUNICATION SYSTEM

   A: GO TO Next Step 

5. CHECK FOR DTC* 
   1. Check for DTC.
   2. Clear the DTC.
   3. Recheck for DTCs.
      1. Simulate the malfunction and check if the DTCs are output again (see DIAGNOSTIC TROUBLE CODE CHART (2006/02-2006/07)  ).

         Result: 

         RESULT REFERENCE
         
         

         Result	Proceed to
         DTC is output	A
         No DTC is output	B
         No DTC is output, and malfunction cannot be simulated or checked	C

   B:  GO TO step  10

   C: SYMPTOM SIMULATION 

   A: GO TO Next Step 

6. DTC CHART* 
7. CIRCUIT INSPECTION 
8. REPAIR* 
9. CONFIRMATION TEST 

   NEXT: END 

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

    NEXT: END