How To Proceed With Troubleshooting

HINT: 

• The wireless door lock control system troubleshooting procedures are 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 these procedures to troubleshoot the wireless door lock control system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

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

   NEXT: Go to next step 

3. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs. Refer to DTC CHECK / CLEAR .
   3. Recheck for DTCs. Refer to DTC CHECK / CLEAR . Based on the DTCs output above, try to force output of the same CAN communication system DTC, LIN communication system DTC or wireless door lock control system DTC by reproducing the symptoms indicated by the DTC.
      RESULT
      
      

      Result	Proceed to
      DTC is not output	A
      CAN communication system DTC is output	B
      LIN communication system DTC is output	C
      Wireless door lock control system DTC is output	D

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

      C → Go to  LIN COMMUNICATION SYSTEM  Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      D → Go to DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      A: Go to next step 

4. PROBLEM SYMPTOMS TABLE 
   1. Refer to Problem Symptoms Table. 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   6 

      A: Go to next step 

5. 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 

6. REPAIR OR REPLACE 

   NEXT: Go to next step 

7. CONFIRMATION TEST 

   NEXT → END