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.

• The intelligent tester can be used at steps 4,5, 8, 11 and 14.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS 
   1. Interview and confirm the trouble.
3. PROBLEM SYMPTOM CONFIRMATION 
4. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM 
   1. Check for output DTCs (See DTC CHECK / CLEAR ).

      HINT:

      The ECM of this system is connected to the multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.

   MULTIPLEX SYSTEM DTC IS OUTPUT: PROCEED TO  MULTIPLEX COMMUNICATION SYSTEM  . 

   NO MULTIPLEX SYSTEM DTC:  Go to step  5

5. DTC CLEAR 

   HINT:

   See DTC CHECK / CLEAR

6. PROBLEM SYMPTOM SIMULATION 

   SYMPTOM DOES NOT OCCUR:  Go to step  7

   SYMPTOM OCCURS:  Go to step  8

7. SYMPTOM SIMULATION 
8. DTC CHECK (OTHER THAN MULTIPLEX SYSTEM DTC) 

   HINT:

   See DTC CHECK / CLEAR 

   DTC IS OUTPUT:  Go to step  9

   NO DTC:  Go to step  10

9. DTC CHART 

   HINT:

   See DIAGNOSTIC TROUBLE CODE CHART 

   GO TO STEP  11

10. PROBLEM SYMPTOMS TABLE 

    HINT:

    See PROBLEM SYMPTOMS TABLE 

11. CIRCUIT INSPECTION 
12. IDENTIFICATION OF PROBLEM 
13. ADJUSTMENT, REPAIR OR REPLACEMENT 
14. CONFIRMATION TEST 

    NEXT: END