How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the clearance sonar system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
   1. Refer to HOW TO PROCEED WITH TROUBLESHOOTING (See HOW TO PROCEED WITH TROUBLESHOOTING ).
3. CHECK AND CLEAR DTC* 
   1. Refer to the DTC CHECK / CLEAR  .
4. CHECK INITIAL CHECK FUNCTION 
   1. Refer to the OPERATION CHECK  .

      Result 

      RESULT REFERENCE CHART
      
      

      Result	Proceed to
      Symptom does not occur	A
      Symptom occurs	B

   B: Go to step  6

   A: Go to next step. 

5. SYMPTOM SIMULATION 
   1. Refer to HOW TO PROCEED WITH TROUBLESHOOTING (See HOW TO PROCEED WITH TROUBLESHOOTING ).
6. CHECK CAN COMMUNICATION SYSTEM* 
   1. Refer to HOW TO PROCEED WITH TROUBLESHOOTING (See HOW TO PROCEED WITH TROUBLESHOOTING ).

      HINT:

      The clearance warning ECU is connected to the CAN communication system. Therefore, be sure to check that there are no problems in the CAN communication system before performing troubleshooting.

7. DTC CHECK* 
   1. Refer to the DTC CHECK / CLEAR  .

      Result 

      RESULT REFERENCE CHART
      
      

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

   B: Go to step  9

   A: Go to next step. 

8. DTC CHART 
   1. Refer to the DIAGNOSTIC TROUBLE CODE CHART  .

   NEXT: Go to step  10

9. PROBLEM SYMPTOMS TABLE 
   1. Refer to the PROBLEM SYMPTOMS TABLE  .
10. CIRCUIT INSPECTION 
11. IDENTIFICATION OF PROBLEM 
12. REPAIR OR REPLACE 
13. CONFIRMATION TEST 

    NEXT: END