How To Proceed With Troubleshooting

HINT:

Troubleshooting of the wireless door lock control system is based on the premise that the door lock control system is operating normally. Accordingly, before troubleshooting the wireless door lock control system, first make certain that the door lock control system is operating normally.

Perform troubleshooting in accordance with the procedure on the following references.

HINT:

• Use this procedure to troubleshoot the wireless door lock control system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
   • GO TO NEXT STEP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

   If the voltage is below 11 V, recharge or replace the battery before proceeding.

   • GO TO NEXT STEP 
3. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Using the intelligent tester, check if the Multiplex Communication System (MPX) is functioning normally.

      Result 

      COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)
      
      

      Result	Proceed to
      MPX DTC is not output	A
      MPX DTC is output	B

      • B: Go to  MULTIPLEX COMMUNICATION SYSTEM 
      • A: GO TO NEXT STEP 
4. PROBLEM SYMPTOMS TABLE 

   Result 

   PROBLEM SYMPTOMS TABLE
   
   

   Result	Proceed to
   Fault is not listed in problem symptoms table	A
   Fault is listed in problem symptoms table	B

   • B: Go to step   6 
   • A: GO TO NEXT STEP 
5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. SEE TERMINALS OF ECU 
   2. SEE DATA LIST/ACTIVE TEST 
   3. SEE ON-VEHICLE INSPECTION 
   • GO TO NEXT STEP 
6. ADJUST, REPAIR OR REPLACE 
   • GO TO NEXT STEP 
7. CONFIRMATION TEST 
   • END