How To Proceed With Troubleshooting

HINT:

• Use the following procedures to troubleshoot the dynamic radar cruise control system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
3. PROBLEM SYMPTOM CONFIRMATION 

   Result 

   RESULT
   
   

   Condition	Proceed to
   Symptom occurs	A
   Symptom does not occur	B

   A: Go to step 4 

   B: SYMPTOM SIMULATION 

4. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

5. CHECK CAN COMMUNICATION SYSTEM* 
   1. Use the intelligent tester to check for normal function of the CAN communication system.
   2. Check for DTCs.

      Result 

      RESULT
      
      

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

   B:  Go to CAN COMMUNICATION SYSTEM

   A: Go to Next Step 

6. DTC CHECK* 

   Result 

   RESULT
   
   

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

   B: Go to step  8

   A: Go to Next Step 

7. DTC CHART 

   NEXT: Go to step  9

8. PROBLEM SYMPTOMS TABLE 
9. CIRCUIT INSPECTION 
10. TERMINALS OF ECM 
11. IDENTIFICATION OF PROBLEM 
12. REPAIR OR REPLACE 
13. CONFIRMATION TEST 

    NEXT: END