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 the customer to confirm the trouble (See HOW TO PROCEED WITH TROUBLESHOOTING ).
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 
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) 
   1. Check for output DTCs (See DTC CHECK/CLEAR  .

   DTC IS OUTPUT: GO TO STEP   9 

   NO DTC: GO TO STEP   10 

9. DTC TABLE 

   NEXT: GO TO STEP   11 

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

    NEXT: END