How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the cruise control system.
• *: Use the Intelligent tester or 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 COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Intelligent tester or Techstream to check if the CAN communication system is functioning normally.

      Result

      RESULT CHART
      
      

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

   B: Go to CAN COMMUNICATION SYSTEM  (See DIAGNOSTIC TROUBLE CODE CHART ).

   A: Go to next step 

4. CHECK INDICATOR LIGHT 
5. CHECK FOR DTC* 
   1. Clear the DTCs (see DTC CHECK / CLEAR ).
   2. Recheck for DTCs (see DTC CHECK / CLEAR ).

   Result

   RESULT CHART
   
   

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

   B: Go to DIAGNOSTIC TROUBLE CODE CHART  (See DIAGNOSTIC TROUBLE CODE CHART ).

   A: Go to next step 

6. PROBLEM SYMPTOMS TABLE 
   1. Refer to problem symptoms table (See PROBLEM SYMPTOMS TABLE ).

   Result

   RESULT CHART
   
   

   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. REPAIR OR REPLACE 
9. CONFIRMATION TEST 

   END