How To Proceed With Troubleshooting

HINT:

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

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

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

3. CHECK COMMUNICATION FUNCTION OF 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 HOW TO PROCEED WITH TROUBLESHOOTING )

   A: Go to next step 

4. CHECK INDICATOR 
   1. Check the indicator (See TERMINALS OF ECU  ).
5. CHECK FOR DTC* 
   1. Check for DTCs (See DTC CHECK/CLEAR  ).
   2. Clear the DTCs (See DTC CHECK/CLEAR  ).
   3. Recheck for DTCs (See DTC CHECK/CLEAR  ).

      Result 

      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 SYMPTOMS TABLE 
   1. Refer to the PROBLEM SYMPTOMS TABLE  (See ).

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      Fault is not listed in problem symptoms table	A
      Fault is listed in problem symptoms table	B

   B:  Go to step  8

   A: Go to next step 

7. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Terminals of ECU (See TERMINALS OF ECU  ).
   2. Data List / Active Test (See DATA LIST / ACTIVE TEST  ).
8. ADJUST, REPAIR OR REPLACE 
9. CONFIRMATION TEST 

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