How To Proceed With Troubleshooting

HINT:

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

1. VEHICLE BROUGHT TO WORKSHOP 
2. PROBLEM SYMPTOM CONFIRMATION 
3. CHECK CAN COMMUNICATION SYSTEM* 
   1. Check for output DTCs.

      Result: 

      DTC RESULT REFERENCE
      
      

      Proceed to	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 (See  HOW TO PROCEED WITH TROUBLESHOOTING  ). 

   A: Go to Next Step 

4. DTC CHECK AND CLEAR* 

   Refer to DTC Check/Clear (See DTC CHECK/CLEAR  ).

5. DTC CHECK (OTHER THAN CAN SYSTEM DTC)* 

   Result: 

   DTC RESULT REFERENCE
   
   

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

   B: GO TO DTC CHART  (See DIAGNOSTIC TROUBLE CODE CHART  ).

   A: Go to Next Step 

6. PROBLEM SYMPTOM CONFIRMATION 

   Result: 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   Symptom does not occur	A
   Symptom occurs	B

   B: Go to STEP  9

   A: Go to Next Step 

7. SYMPTOM SIMULATION 

   Refer to Electronic Circuit Inspection Procedure (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

8. PROBLEM SYMPTOMS TABLE 

   Refer to Problem Symptoms Table (See PROBLEM SYMPTOMS TABLE  ).

9. CIRCUIT INSPECTION 
10. TERMINALS OF ECM 

    Refer to Terminals of ECM (See TERMINALS OF ECM  ).

11. IDENTIFICATION OF PROBLEM 
12. REPAIR OR REPLACE 
13. CONFIRMATION TEST 

    NEXT: END