How To Proceed With Troubleshooting

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM:

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 Techstream can be used at steps 4, 5, 8, 11 and 14.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
NEXT -- Continue to next step.
3. PROBLEM SYMPTOM CONFIRMATION
NEXT -- Continue to next step.
4. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM
(a) Check for output DTCs Reading and Clearing Diagnostic Trouble Codes.
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
NEXT -- Continue to next step.
6. PROBLEM SYMPTOM SIMULATION
-- SYMPTOM DOES NOT OCCUR: GO TO STEP 7
-- SYMPTOM OCCURS: GO TO STEP 8
7. SYMPTOM SIMULATION
NEXT -- Continue to next step.
8. DTC CHECK (OTHER THAN MULTIPLEX SYSTEM DTC)
(a) Check for output DTCs Reading and Clearing Diagnostic Trouble Codes.
-- DTC IS OUTPUT: GO TO STEP 9
-- NO DTC: GO TO STEP 10
9. DTC CHART
NEXT -- GO TO STEP 11
10. PROBLEM SYMPTOMS TABLE
NEXT -- Continue to next step.
11. CIRCUIT INSPECTION
NEXT -- Continue to next step.
12. IDENTIFICATION OF PROBLEM
NEXT -- Continue to next step.
13. ADJUSTMENT, REPAIR OR REPLACEMENT
NEXT -- Continue to next step.
14. CONFIRMATION TEST
NEXT -- END