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Symptom
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Suspected Area
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Link
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The theft deterrent system cannot be set or canceled
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Proceed to "Security indicator light does not blink"
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Proceed to "Security Indicator Light Circuit"
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ACC signal circuit
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IG signal circuit
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Door unlock detection switch circuit
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Door courtesy switch circuit
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Engine hood courtesy switch circuit
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Harness or connector
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-
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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After a wireless door lock operation is performed with the back door
open, the theft deterrent system is not set when the back door is closed
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Proceed to "Security indicator light does not blink"
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Proceed to "Security Indicator Light Circuit"
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ACC signal circuit
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IG signal circuit
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Door unlock detection switch circuit
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Door courtesy switch circuit
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Engine hood courtesy switch circuit
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Harness or connector
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-
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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After a wireless door lock operation is performed with the hood open,
the theft deterrent system is not set when the hood is closed
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Proceed to "Security indicator light does not blink"
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Proceed to "Security Indicator Light Circuit"
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ACC signal circuit
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IG signal circuit
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Door unlock detection switch circuit
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Door courtesy switch circuit
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Engine hood courtesy switch circuit
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Harness or connector
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-
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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Security indicator light does not blink when theft deterrent system is
set
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Proceed to "Security indicator light does not blink"
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Proceed to "Security Indicator Light Circuit"
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The theft deterrent system becomes set by itself
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Check customize setting
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Door courtesy switch circuit
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Engine hood courtesy switch circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The theft deterrent system cannot be canceled by turning the ignition
switch to ON
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Main body ECU (multiplex network body ECU)
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None of the alarm functions operate or the theft deterrent system can
be set even when all necessary conditions are not met
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Door unlock detection switch circuit
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Door courtesy switch circuit
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Engine hood courtesy switch circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The doors are not forcibly locked when the vehicle is in the alarm sounding
state
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Wireless door lock control system
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Door unlock detection switch circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The vehicle does not enter the alarm sounding state when the battery
is reconnected while the vehicle is in the armed state
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Check operation of the security indicator light
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The vehicle does not enter the alarm sounding state when the back door
is opened while the vehicle is in the armed state
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Check operation of the security indicator light
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The vehicle does not enter the alarm sounding state when the hood is
opened while the vehicle is in the armed state
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Check operation of the security indicator light
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Engine hood courtesy switch circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The vehicle does not enter the alarm sounding state when the doors are
unlocked while the vehicle is in the armed state
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Door unlock detection switch circuit
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Door courtesy switch circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The vehicle does not enter the alarm sounding state according to glass
breakage sensor operation (w/ Glass Breakage Sensor)
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Glass breakage sensor circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The security horn assembly does not operate when the vehicle is in the
alarm sounding state
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Security horn circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The headlights do not operate when the vehicle is in the alarm sounding
state
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Lighting system
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The taillights do not operate when the vehicle is in the alarm sounding
state
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Taillight circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The interior lights do not operate when the vehicle is in the alarm sounding
state
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Interior light circuit
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If the symptom(s) still occur after the above area is inspected and proved
to be normal, replace the main body ECU (multiplex network body ECU)
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The hazard warning lights do not operate when the vehicle is in the alarm
sounding state
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Lighting system
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If the symptom(s) still occur after the above areas are inspected and
proved to be normal, replace the main body ECU (multiplex network body ECU)
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The vehicle horn does not operate when the vehicle is in the alarm sounding
state
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Horn circuit
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Hazard warning lights flash even when theft deterrent system is not set
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Lighting system
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If the symptom(s) still occur after the above areas are inspected and
proved to be normal, replace the main body ECU (multiplex network body ECU)
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