Toyota Corolla Cross: Problem Symptoms Table

Theft deterrent system cannot be set

Refer to "Security Indicator Light Does not Blink" (for HEV Model )

Refer to "Security Indicator Light Does not Blink" (for Gasoline Model)

Refer to "Front Door Courtesy Switch Circuit"

Refer to "Rear Door Courtesy Switch Circuit"

Refer to "Back Door Courtesy Switch Circuit"

Front door lock with motor assembly

Rear door lock with motor assembly

Back door lock with courtesy light switch assembly

Refer to "Engine Hood Courtesy Switch Circuit"

Security indicator light does not blink when theft deterrent system is set

Refer to "Security Indicator Light Does not Blink" (for HEV Model )

Refer to "Security Indicator Light Does not Blink" (for Gasoline Model)

Alarm sounding state cannot be canceled when ignition switch is turned to ON

Refer to "Smart Key System (for Start Function, HEV Model)"

Refer to "Smart Key System (for Start Function, Gasoline Model)"

Certification ECU (Smart key ECU assembly)

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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)

Theft deterrent system can be set even when door is open

Refer to "Front Door Courtesy Switch Circuit"

Refer to "Rear Door Courtesy Switch Circuit"

Refer to "Back Door Courtesy Switch Circuit"

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)

Theft deterrent system can be set even when engine hood is open

Refer to "Engine Hood Courtesy Switch Circuit"

Vehicle horns do not sound while theft deterrent system is in alarm sounding state

Refer to "Horn Circuit"

Security horn does not sound while theft deterrent system is in alarm sounding state

Refer to "Security Horn Circuit"

Low beams do not blink while theft deterrent system is in alarm sounding state

Refer to "Lighting System (w/ AFS)"

Refer to "Lighting System (w/o AFS)"

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)

Taillights do not blink while theft deterrent system is in alarm sounding state

Refer to "Taillight Relay Circuit (w/ AFS)"

Refer to "Taillight Relay Circuit (w/o AFS)"

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)

Hazard warning lights do not flash while theft deterrent system is in alarm sounding state

Combination meter assembly

-

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)

Interior lights do not light up while theft deterrent system is in alarm sounding state

Refer to "Interior Light Circuit"

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)

Low beams blink even when theft deterrent system is not set

Refer to "Lighting System (w/ AFS)"

Refer to "Lighting System (w/o AFS)"

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)

Taillights blink even when theft deterrent system is not set

Refer to "Taillight Relay Circuit (w/ AFS)"

Refer to "Taillight Relay Circuit (w/o AFS)"

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)

Hazard warning lights flash even when theft deterrent system is not set

Combination meter assembly

-

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)

Interiors light comes on even when theft deterrent system is not set

Refer to "Interior Light Circuit"

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)