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Home >> Lexus >> 2015 >> IS 250 Base, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Smart Access System (For Entry) - Diagnostics - Introduction (2 Of 2) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> Problem Symptoms Table [04/2013 - 09/2020] >> Problem Symptoms Table [04/2013 - 09/2020]
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Problem Symptoms Table [04/2013 - 09/2020]

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SMART ACCESS SYSTEM WITH PUSH-BUTTON START (FOR ENTRY FUNCTION)

Symptom Suspected Area Link
Entry interior alarm does not sound Meter/gauge system Refer to Entry Interior Alarm does not Sound [04/2013 - ]
Certification ECU (Smart key ECU assembly) -
Entry exterior alarm and answer-back buzzer do not sound Certification ECU (Smart key ECU assembly) Refer to Entry Exterior Alarm and Answer-back Buzzer do not Sound [04/2013 - ]
Main Body ECU (Multiplex Network Body ECU) -
Wire harness or connector -
All door entry lock/unlock functions and wireless functions do not operate Power door lock control system Refer to All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate [04/2013 - 09/2020]
Electrical key transmitter sub-assembly -
Transmitter battery -
Door control and tire pressure monitoring system receiver assembly -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
All door entry lock/unlock functions do not operate, but wireless functions operate Electrical key transmitter sub-assembly Refer to All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate [04/2013 - ]
Certification ECU (Smart key ECU assembly) -
Driver side door entry unlock function does not operate Power door lock control system Refer to Driver Side Door Entry Unlock Function does not Operate [04/2013 - ]
Front door outside handle assembly (for driver door) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Front passenger side door entry unlock function does not operate Power door lock control system Refer to Front Passenger Side Door Entry Unlock Function does not Operate [04/2013 - ]
Front door outside handle assembly (for front passenger door) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Driver side door entry lock and unlock functions do not operate Power door lock control system Refer to Driver Side Door Entry Lock and Unlock Functions do not Operate [04/2013 - ]
Front door outside handle assembly (for driver door) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Front passenger side door entry lock and unlock functions do not operate Power door lock control system Refer to Front Passenger Side Door Entry Lock and Unlock Functions do not Operate [04/2013 - ]
Front door outside handle assembly (for front passenger door) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Driver side door entry lock function does not operate Power door lock control system Refer to Driver Side Door Entry Lock Function does not Operate [04/2013 - ]
Front door outside handle assembly (for driver door) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Front passenger side door entry lock function does not operate Power door lock control system Refer to Front Passenger Side Door Entry Lock Function does not Operate [04/2013 - ]
Front door outside handle assembly (for front passenger door) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Room oscillator does not recognize key Smart access system with push-button start (for Start Function) Refer to Room Oscillator does not Recognize Key [04/2013 - 09/2022]
No. 2 indoor electrical key antenna assembly (front floor) -
Indoor electrical key antenna (rear floor) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Electrical key transmitter sub-assembly -
Luggage compartment door entry unlock function does not operate when key is outside luggage compartment Power door lock control system Refer to Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment [04/2013 - 09/2020]
Luggage electrical key switch -
Electrical key antenna (outside luggage compartment) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
Key luggage compartment lock-in prevention function does not operate Power door lock control system Refer to Key Luggage Compartment Lock-in Prevention Function does not Operate [04/2013 - ]
No. 1 indoor electrical key antenna assembly (inside luggage) -
Certification ECU (Smart key ECU assembly) -
Wire harness or connector -
New key cannot be registered Steering lock ECU (Steering lock actuator assembly) Refer to New Key cannot be Registered [04/2013 - 09/2022]
ID code box (Immobiliser code ECU) -
Certification ECU (Smart key ECU assembly) -
Engine switch -
Wire harness or connector -
Additional key cannot be registered Steering lock system -
Certification ECU (Smart key ECU assembly) Refer to Additional Key cannot be Registered [04/2013 - 09/2022]
Electrical key transmitter sub-assembly -