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Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Power door lock control system 

PROBLEM SYMPTOMS TABLE - POWER DOOR LOCK CONTROL SYSTEM

Symptom Suspected Area See
All doors cannot be locked/unlocked simultaneously by neither door control switch nor door key cylinder Power source circuit (Main body ECU) TERMINALS OF ECU 
Main body ECU TERMINALS OF ECU 
All doors cannot be locked/unlocked simultaneously by driver side door control switch Door control switch circuit (Driver side) DOOR CONTROL SWITCH CIRCUIT 
Main body ECU TERMINALS OF ECU 
All doors cannot be locked/unlocked simultaneously by front passenger side door control switch Door control switch circuit (front passenger side) DOOR CONTROL SWITCH CIRCUIT 
Main body ECU TERMINALS OF ECU 
All doors cannot be locked/unlocked simultaneously by door key cylinder Driver side door key lock and unlock switch circuit DRIVER SIDE DOOR KEY LOCK AND UNLOCK SWITCH CIRCUIT 
Main body ECU TERMINALS OF ECU 
Driver side door lock does not operate Driver side door lock motor circuit DRIVER SIDE DOOR LOCK MOTOR CIRCUIT 
Main body ECU TERMINALS OF ECU 
Passenger side door lock does not operate Front passenger side door lock motor circuit FRONT PASSENGER SIDE DOOR LOCK MOTOR CIRCUIT 
Main body ECU TERMINALS OF ECU 
Rear LH side door lock does not operate Rear door lock motor circuit REAR DOOR LOCK MOTOR CIRCUIT 
Main body ECU TERMINALS OF ECU 
Rear RH side door lock does not operate Rear door lock motor circuit REAR DOOR LOCK MOTOR CIRCUIT 
Main body ECU TERMINALS OF ECU 
Back door lock does not operate Back door lock motor circuit BACK DOOR LOCK MOTOR CIRCUIT 
Main body ECU TERMINALS OF ECU 
Key lock-in prevention function does not work properly (manual operation and key - linked lock are active) Door courtesy light switch circuit (Driver side) DOOR COURTESY SWITCH CIRCUIT
Unlock warning switch circuit KEY REMINDER BUZZER DOES NOT SOUND 
Main body ECU TERMINALS OF ECU 
Shift-linked automatic door lock does not operate CAN communication system -
Main body ECU TERMINALS OF ECU 
One or more does cannot be locked/unlocked simultaneously Driver side door unlock detection switch circuit DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
Front passenger side door unlock detection switch circuit FRONT PASSENGER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
Rear door unlock detection switch circuit REAR DOOR UNLOCK DETECTION SWITCH CIRCUIT 
Main body ECU TERMINALS OF ECU 
Only back door cannot be opened (Unlocked) Back door opener switch circuit BACK DOOR OPENER SWITCH CIRCUIT 
Back door lock motor circuit BACK DOOR LOCK MOTOR CIRCUIT 
Main body ECU TERMINALS OF ECU