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.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
   1. Interview the customer to confirm the trouble (See HOW TO PROCEED WITH TROUBLESHOOTING ).
3. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the Techstream to check for normal function of the can 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 MULTIPLEX COMMUNICATION SECTION

   A: Go to next step 

4. 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 activity that the DTC suggests.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed To
      DTC does not reoccur	A
      DTC reoccurs	See DIAGNOSTIC TROUBLE CODE CHART

   B:  Go to DTC CHART 

   A: Go to next step 

5. SYMPTOM SIMULATION 
6. 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  8

   A: Go to next step 

7. PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM 
   1. Terminals of ECU (See TERMINALS OF ECU  )
   2. DATA LIST/ACTIVE TEST (See DATA LIST / ACTIVE TEST  )
8. ADJUST, REPAIR OR REPLACE 
9. CONFIRMATION TEST 

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