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.

Smart key system:

PROBLEM SYMPTOMS REFERENCE

Symptom	Suspected Area	Refer to
Entry lock and unlock functions do not operate on all doors	Wireless door lock function	ALL DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	ECU aggregation box (certification ECU)	ALL DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Electrical key	ALL DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wire harness	ALL DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
Entry unlock function does not operate on driver side door	Power door lock control system	DRIVER SIDE DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Door electrical key cylinder (for driver side)	DRIVER SIDE DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Front door handle outside (driver side)	DRIVER SIDE DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	ECU aggregation box (certification ECU)	DRIVER SIDE DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Instrument panel junction block (main body ECU)	DRIVER SIDE DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Wire harness	DRIVER SIDE DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
Entry lock and unlock functions do not operate on driver side door	Power door lock control system	DRIVER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wireless door lock control system	DRIVER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Door electrical key oscillator (for driver side)	DRIVER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	ECU aggregation box (certification ECU)	DRIVER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Instrument panel junction block (main body ECU)	DRIVER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wire harness	DRIVER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
Entry lock and unlock functions do not operate on front passenger side door	Power door lock control system	FRONT PASSENGER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wireless door lock control system	FRONT PASSENGER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Door electrical key oscillator (for passenger side)	FRONT PASSENGER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	ECU aggregation box (certification ECU)	FRONT PASSENGER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Instrument panel junction block (main body ECU)	FRONT PASSENGER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wire harness	FRONT PASSENGER SIDE DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
Entry lock function does not operate on driver side door	Power door lock control system	DRIVER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Wireless door lock control system	DRIVER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Front handle outside (for driver side)	DRIVER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	ECU aggregation box (certification ECU)	DRIVER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Instrument panel junction block (main body ECU)	DRIVER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Wire harness	DRIVER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
Entry lock function does not operate on front passenger side door	Power door lock control system	FRONT PASSENGER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Wireless door lock control system	FRONT PASSENGER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Front door handle outside (for passenger side)	FRONT PASSENGER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	ECU aggregation box (certification ECU)	FRONT PASSENGER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Instrument panel junction block (main body ECU)	FRONT PASSENGER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Wire harness	FRONT PASSENGER SIDE DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
Room oscillator does not recognize key	Indoor electrical key oscillator (for front)	ROOM OSCILLATOR DOES NOT RECOGNIZE KEY
	Indoor electrical key oscillator (for rear)	ROOM OSCILLATOR DOES NOT RECOGNIZE KEY
	ECU aggregation box (certification ECU)	ROOM OSCILLATOR DOES NOT RECOGNIZE KEY
	Electrical key	ROOM OSCILLATOR DOES NOT RECOGNIZE KEY
	Wire harness	ROOM OSCILLATOR DOES NOT RECOGNIZE KEY
Entry interior alarm does not sound	Combination meter	CUSTOMIZE PARAMETERS
Entry interior alarm does not sound	ECU aggregation box (certification ECU)	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Entry functions do not operate at all	Wireless door lock control system	PROBLEM SYMPTOMS TABLE
Entry functions do not operate at all	ECU aggregation box (certification ECU)	ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Entry answer-back does not occur	ECU aggregation box (certification ECU)	WIRELESS DOOR LOCK BUZZER DOES NOT SOUND
	Wireless door lock buzzer	WIRELESS DOOR LOCK BUZZER DOES NOT SOUND
	Wire harness	WIRELESS DOOR LOCK BUZZER DOES NOT SOUND
Back door entry unlock function does not operate	Power door lock control system	BACK DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Wireless door lock control system	BACK DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Back door outside handle (back door lock switch)	BACK DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	ECU aggregation box (certification ECU)	BACK DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Instrument panel junction block (main body ECU)	BACK DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
	Wire harness	BACK DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE
Back door entry lock function does not operate	Power door lock control system	BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wireless door lock control system	BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Back door outside handle (back door lock switch)	BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	ECU aggregation box (certification ECU)	BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Instrument panel junction block (main body ECU)	BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
	Wire harness	BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE
Back door entry lock and unlock functions do not operate	Power door lock control system	BACK DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Wireless door lock control system	BACK DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Door electrical key oscillator (for back door)	BACK DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	ECU aggregation box (certification ECU)	BACK DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Instrument panel junction block (main body ECU)	BACK DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE
	Wire harness.	BACK DOOR ENTRY LOCK FUNCTION DOES NOT OPERATE