How To Proceed With Troubleshooting

HINT: 

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

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 

   NEXT: Go to next step 

3. PROBLEM SYMPTOM CONFIRMATION 

   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 11 V, replace or recharge the battery before proceeding to the next step.

   NEXT: Go to next step 

5. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the Techstream to check if the multiplex communication system (MPX) is functioning normally.
      RESULT
      
      

      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 

6. CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN) 
   1. Use the Techstream to check for normal function of the CAN communication system.
   2. Check for DTCs.

      Result

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

      B → Go to CAN COMMUNICATION SYSTEM 

      A: Go to next step 

7. DTC CHECK 

   Result

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

   B → Go to step   9 

   A: Go to next step 

8. DTC CHART 

   NEXT → Go to step   10 

9. PROBLEM SYMPTOMS TABLE 

   NEXT: Go to next step 

10. CIRCUIT INSPECTION 

    NEXT: Go to next step 

11. TERMINALS OF ECM 

    NEXT: Go to next step 

12. IDENTIFICATION OF PROBLEM 

    NEXT: Go to next step 

13. REPAIR OR REPLACE 

    NEXT: Go to next step 

14. CONFIRMATION TEST 

    NEXT → END