WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System) PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.

Wireless Door Lock Control System
Symptom	Suspected Area	See page
Only wireless control function is inoperative	Proceed to "Only wireless control function is inoperative"	Click here
Only answer-back function does not operate normally	Proceed to "No answer-back"	Click here
Only automatic lock function does not operate normally	Perform the operation check	Click here
	Key reminder warning system	Click here
	Lighting system (front door courtesy light switch circuit)	Click here
	Lighting system (rear door courtesy light switch circuit)	Click here
	Main body ECU (multiplex network body ECU)	-
Only illuminated entry function does not operate	Perform the operation check	Click here
	Lighting system	Click here
	Main body ECU (multiplex network body ECU)	-
Only door ajar warning function does not operate	Perform the operation check	Click here
	Lighting system (front door courtesy light switch circuit)	Click here
	Lighting system (rear door courtesy light switch circuit)	Click here
	Main body ECU (multiplex network body ECU)	-
Only panic alarm function does not operate*1	Perform operation check	Click here
	Lighting system (int) (interior lights)	Click here
	Lighting system (ext) (headlights, taillights, hazard lights)	Click here
	Theft deterrent system (vehicle horn)	Click here
	Main body ECU (multiplex network body ECU)	-
Only panic alarm function does not operate*2	Perform operation check	Click here
	Lighting system (int) (interior lights)	Click here
	Lighting system (ext) (headlights, taillights, hazard lights)	Click here
	Horn system	Click here
	Wire harness or connector (vehicle horn - main body ECU (multiplex network body ECU))	-
	Main body ECU (multiplex network body ECU)	-
Only luggage compartment door open function does not operate	Perform operation check	Click here
	Wire harness or connector	-
	Door control transmitter module set sub-assembly	Click here
	Main body ECU (multiplex network body ECU)	-

*1: w/ Theft Deterrent System
*2: w/o Theft Deterrent System