How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the power door lock control system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

3. CHECK COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the intelligent tester to check if the multiplex communication system (MPX) is functioning normally.

      Result 

      RESULT CHART
      
      

      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. CHECK COMMUNICATION FUNCTION OF LARGE-SCALE CAN COMMUNICATION SYSTEM* 
   1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result 

      RESULT CHART
      
      

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

   B:  GO TO CAN COMMUNICATION SYSTEM

   A: GO TO Next Step 

5. CHECK FUNCTION OF SUPPLEMENTAL RESTRAINT SYSTEM* 
   1. Use the intelligent tester to check if the supplemental restraint system is functioning normally.

      Result 

      RESULT CHART
      
      

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

   B:  GO TO SUPPLEMENTAL RESTRAINT SYSTEM

   A: GO TO Next Step 

6. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT CHART
   
   

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

   B:  GO TO step  8

   A: GO TO Next Step 

7. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. Terminals of ECU (see TERMINALS OF ECU  )
   2. DATA LIST/ACTIVE TEST (see DATA LIST / ACTIVE TEST  )
   3. On-vehicle Inspection (see ON-VEHICLE INSPECTION  )
8. REPAIR OR REPLACE 
9. CONFIRMATION TEST 

   NEXT: END