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.
• Inspect the fuses and relays related to this system before inspecting the suspected areas below.

  Power door lock control system 

  PROBLEM SYMPTOMS CHART
  
  

  Symptom	Suspected area	See
  Driver side door lock switch circuit malfunction	1. Power window regulator master switch	DTC B1222 Driver Side Door Lock Switch Circuit Malfunction
  	2. Multiplex network front door ECU LH
  	3. Front door w/ motor lock LH
  	4. Wire harness
  Front passenger side door lock switch circuit malfunction	1. Door lock control switch	DTC B1224 Front Passenger Side Door Lock Switch Circuit Malfunction
  	2. Multiplex network front door ECU RH
  	3. Front door w/ motor lock RH
  	4. Wire harness
  Key lock-in prevention function does not work properly	1. Front multiplex network door ECU LH	KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY
  	2. Front door courtesy light switch LH
  	3. Unlock warning switch
  	4. Transponder key ECU	TERMINALS OF ECU
  Speed-sensitive automatic door lock function by vehicles speed does not work	1. Combination meter	TERMINALS OF ECU
  	2. Theft warning ECU	TERMINALS OF ECU
  Door lock system does not operate at all	1. Power window regulator master switch	DTC B1222 Driver Side Door Lock Switch Circuit Malfunction
  	2. Door lock control switch	DTC B1224 Front Passenger Side Door Lock Switch Circuit Malfunction
  	3. Multiplex network front door ECU LH	TERMINALS OF ECU
  	4. Multiplex network front door ECU RH
  	5. Theft warning ECU