How To Proceed With Troubleshooting

HINT.

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

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

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

3. CHECK CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally.

      Result 

      RESULT REFERENCE
      
      

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

   B: Go to CAN COMMUNICATION SYSTEM  (see PROBLEM SYMPTOMS TABLE )

   A: Go to next step 

4. CHECK INDICATOR 
   1. Check the indicator (see TERMINALS OF ECM  ).
5. CHECK FOR DTC* 
   1. Check for DTCs (see FAIL-SAFE CHART  ).
   2. Clear the DTCs (see FAIL-SAFE CHART  ).
   3. Recheck for DTCs (see FAIL-SAFE CHART  ).

      Result 

      RESULT REFERENCE
      
      

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

   A:  Go to STEP  7

   B: Go to next step 

6. DTC CHART* 

   Refer to DIAGNOSTIC TROUBLE CODE CHART  .

   NEXT:  Go to STEP  10

7. PROBLEM SYMPTOM CONFIRMATION 

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Symptom occurs	A
   Symptom does not occur	B

   A:  Go to STEP  9

   B: Go to next step 

8. PROBLEM SYMPTOMS TABLE 

   Refer to the PROBLEM SYMPTOMS TABLE  .

9. CIRCUIT INSPECTION 
10. CHECK TERMINALS OF ECM 

    Refer to TERMINALS OF ECM  .

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

    NEXT : END