How To Proceed With Troubleshooting

HINT: 

• The wireless door lock control system troubleshooting procedure is based on the premise that the power door lock control system is operating normally. Check the power door lock control system first before troubleshooting the wireless door lock control system. Use this procedure to troubleshoot the wireless door lock control system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 

   HINT: 

   • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
   • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
   • The following 5 items are important points in the problem analysis:

   What	Vehicle model, system name
   When	Date, time, occurrence frequency
   Where	Road conditions
   Under what conditions?	Running conditions, driving conditions, weather conditions
   How did it happen?	Problem symptoms

   NEXT: Go to next step 

3. INSPECT BATTERY VOLTAGE 
   1. Measure the battery voltage.

      Standard Voltage

      11 to 14 V

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

      NEXT: Go to next step 

4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally. Refer to DIAGNOSIS SYSTEM .

      Result

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

      B → GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING  .

      A: Go to next step 

5. CHECK DTC OUTPUT (WIRELESS DOOR LOCK CONTROL SYSTEM) 
   1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
   2. Recheck for DTCs.

      Result

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

      B → GO TO  DIAGNOSTIC TROUBLE CODE CHART   .

      A: Go to next step 

6. PROBLEM SYMPTOMS TABLE 
   1. Refer to PROBLEM SYMPTOMS TABLE .

      Result

      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. Operation Check. Refer to OPERATION CHECK .
   2. Terminals of ECU. Refer to TERMINALS OF ECU .
   3. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST .

      NEXT: Go to next step 

8. REPAIR OR REPLACE 

   NEXT: Go to next step 

9. CONFIRMATION TEST 

   NEXT → END