Problem Symptoms Table
- 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.
Theft Deterrent System
THEFT DETERRENT SYSTEM CHARTSymptom Suspected Area See page Theft deterrent system cannot be set Check if the theft warning ECU communication DTC is output DIAGNOSTIC TROUBLE CODE CHART Security indicator light circuit SECURITY INDICATOR LIGHT CIRCUIT Theft Warning ECU power source circuit THEFT WARNING ECU POWER SOURCE CIRCUIT Unlock warning switch circuit UNLOCK WARNING SWITCH CIRCUIT Door courtesy switch circuit - Front door lock INSPECTION Rear door lock INSPECTION Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Security indicator does not blink when theft deterrent system is set Security indicator light circuit SECURITY INDICATOR LIGHT CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Alarm sounding state to cannot be canceled when ignition switch is turned ON Ignition switch circuit IGNITION SWITCH CIRCUIT Unlock warning switch circuit UNLOCK WARNING SWITCH CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Theft deterrent system can be set even when a door is open Door courtesy switch circuit DOOR COURTESY SWITCH CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Vehicle horn (low pitched, high pitched) do not sound while theft deterrent system is in warning operation Horn circuit HORN CIRCUIT If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Headlights do not blink while theft deterrent system is in warning operation Headlight Relay Circuit HEADLIGHT RELAY CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Taillights do not blink while theft deterrent system is in warning operation Taillight Relay Circuit TAILLIGHT RELAY CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Hazard warning lights do not flash while theft deterrent system Is in warning operation Wire harness or connector - Turn signal flasher assembly INSPECTION Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Interior light does not light up while theft deterrent system is in warning operation Interior light circuit INTERIOR LIGHT CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Headlights blink even when theft deterrent system is not set Headlight Relay Circuit HEADLIGHT RELAY CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Taillights blink even when theft deterrent system is not set Taillight Relay Circuit TAILLIGHT RELAY CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Hazard warning lights flash even when theft deterrent system is not set Wire harness or connector - Turn signal flasher assembly INSPECTION Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Interior light comes on even when theft deterrent system is not set Interior light circuit INTERIOR LIGHT CIRCUIT Theft warning ECU assembly THEFT WARNING ECU If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) - Glass breakage sensor does not operate Glass breakage sensor circuit GLASS BREAKAGE SENSOR CIRCUIT Theft warning ECU assembly - If the symptom (s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (instrument panel junction block) THEFT WARNING ECU