How To Proceed With Troubleshooting

HINT:

• Use the following procedure 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 CAN COMMUNICATION SYSTEM* 
     1. Check for output DTCs.

     Result 

     DTC OUTPUT 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  (See HOW TO PROCEED WITH TROUBLESHOOTING )

     A: Go to Next Step 

  4. CHECK INDICATOR LIGHT 
  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 

     DTC OUTPUT RESULT
     
     

     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. See PROBLEM SYMPTOMS TABLE 

     Result 

     RESULT CHART
     
     

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

     B: Go to step  8

     A: Go to Next Step 

  7. OVERALL ANALYSIS AND TROUBLESHOOTING* 
     1. See TERMINALS OF ECM 
     2. See DATA LIST / ACTIVE TEST 
  8. REPAIR OR REPLACE 
  9. CONFIRMATION TEST