THEFT DETERRENT SYSTEM > PROBLEM SYMPTOMS TABLE

Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit.

HINT:

Troubleshooting of the theft deterrent system is based on the premise that the door lock control system and the wireless door lock control system are operating normally. Accordingly, before troubleshooting the theft deterrent system, first make certain that the door lock control system and the wireless door lock control system are operating normally.

Theft deterrent system
Symptom	Suspected area	See page
Theft deterrent system cannot be set	1. Security indicator light circuit	Click here
	2. ECU power source circuit	Click here
	3. Unlock warning switch circuit	Click here
	4. Door key lock and unlock switch	Click here
	5. Door courtesy switch circuit	Click here
	6. Back door courtesy switch circuit	Click here
	7. Engine hood courtesy switch circuit	Click here
	8. Multiplex network body ECU	-
Security indicator does not blink when theft deterrent system is set	1. Security indicator light circuit	Click here
	2. Multiplex network body ECU	-
Alarm sounding state is not canceled	1. Ignition switch circuit	Click here
	2. Unlock warning switch circuit	Click here
	3. Multiplex network body ECU	-
Theft deterrent system can be set even when any door is open	1. Door courtesy switch circuit	Click here
	2. Multiplex network body ECU	-
Horns (low pitched, high pitched) do not sound while theft deterrent system is in warning operation	1. Horn circuit	Click here
	2. Multiplex network body ECU	-
Headlights do not flash while theft deterrent system is in warning operation (Except for Europe)	1. Headlight circuit	Click here
	2. Multiplex network body ECU	-
Taillights do not flash while theft deterrent system is in warning operation (Except for Europe)	1. Taillight circuit	Click here
	2. Multiplex network body ECU	-
Hazard warning lights do not flash while theft deterrent system is in warning operation	1. Hazard warning circuit	Click here
	2. Multiplex network body ECU	-
Interior light does not light up while theft deterrent system is in warning operation	1. Interior light circuit	Click here
	2. Multiplex network body ECU	-
Headlights flash even when theft deterrent system is not set (Except for Europe)	1. Headlight circuit	Click here
	2. Multiplex network body ECU	-
Taillights flash even when theft deterrent system is not set (Except for Europe)	1. Taillight circuit	Click here
	2. Multiplex network body ECU	-
Hazard warning lights flash even when theft deterrent system is not set	1. Hazard warning circuit	Click here
	2. Multiplex network body ECU	-
Interior light comes on even when theft deterrent system is not set	1. Interior light circuit	Click here
	2. Multiplex network body ECU	-
Theft warning siren sounds even when theft deterrent system is not set	1. Theft warning siren circuit	Click here
	2. Multiplex network body ECU	-
Intrusion (theft warning) sensor does not detect any moving object while theft deterrent system is set (Europe only)	1. Check DTC code	Click here
	2. Intrusion sensor circuit	Click here
Intrusion (theft warning) sensor sets off alarm while theft deterrent system is not set or there is nothing moving inside vehicle with theft deterrent system set (Europe only)	1. Check DTC code	Click here
	2. Intrusion sensor circuit	Click here
Intrusion (theft warning) sensor OFF switch does not operate (Europe only)	1. Intrusion sensor circuit	Click here
Intrusion (theft warning) sensor OFF switch continues operating (Europe only)	1. Intrusion sensor circuit	Click here