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 this procedure to troubleshoot the wireless door lock control system.

VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
CUSTOMER PROBLEM ANALYSIS
1. Interview the customer to confirm the trouble. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
  NEXT: Go to next step
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM
1. Use Techstream to check for normal function of the multiplex communication system.
  1. (ECU unconnected, communication line malfunctioning) If no code is output, proceed to A.
  2. (ECU unconnected, communication line malfunctioning) If any code is output, proceed to B.
  B → Go To CAN COMMUNICATION SYSTEM CAN COMMUNICATION ARTICLE
  
  A: Go to next step
DTC CHECK
1. Check for a DTC and note any codes that are output.
2. Delete the DTC.
3. Recheck for DTCs. Try to prompt the DTC by simulating the original symptom that the DTC suggests.
  1. If the DTC does not reoccur, proceed to A.
  2. If the DTC reoccurs, proceed to B.
  B → Go To DIAGNOSTIC TROUBLE CODE CHART DTC chart
  
  A: Go to next step
SYMPTOM SIMULATION
NEXT: Go to next step
PROBLEM SYMPTOMS TABLE
1. If the fault is not listed in the problem symptoms table, proceed to A.
2. If the fault is listed in the problem symptoms table, proceed to B.
  B → Go to step 7
  
  A: Go to next step
PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
1. Terminals of ECU. Refer to TERMINALS OF ECU
2. DATA LIST/ACTIVE TEST. Refer to DATA LIST / ACTIVE TEST
  NEXT: Go to next step
ADJUST, REPAIR OR REPLACE
NEXT: Go to next step
CONFIRMATION TEST
NEXT → END