How To Proceed With Troubleshooting

HINT: 

• Use the following procedure to troubleshoot the cruise control system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard Voltage

   11 to 14 V

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

   NEXT: Go to next step 

3. CHECK CAN COMMUNICATION SYSTEM* 
   1. Check for output DTCs.

      Result

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

      HINT: 

      The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

      B → GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      A: Go to next step 

4. CHECK FOR DTC* 
   1. Check for DTCs. Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs. Refer to DTC CHECK / CLEAR .
   3. Recheck for DTCs. Refer to DTC CHECK / CLEAR .

      Result

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

      B → GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 
   1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .

      Result

      Result	Proceed to
      There is no applicable symptom in the table	A
      There is an applicable symptom in the table	B

      B → Go to   8 

      A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Terminals of ECM. Refer to TERMINALS OF ECM 
   2. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST 

      NEXT: Go to next step 

7. REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END