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Home >> Lexus >> 2012 >> IS 350C >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Smart Access System With Push-Button Start (For Entry Function) (Diagnostics & Symptom Tests) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> Problem Symptoms Table >> Problem Symptoms Table
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Problem Symptoms Table

HINT: 

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.

SMART ACCESS SYSTEM WITH PUSH BUTTON START

Symptom Suspected Area Refer To
Entry answer-back does not sound*1 Wireless door lock control system Refer to Entry Answer-back Buzzer does not Sound 
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 
Key (for Standard) -
Key battery -
Fuse (SECURITY) -
Harness or connector -
Door control receiver -
Certification ECU (Smart key ECU assembly) -
All door entry lock/unlock functions do not operate, but wireless functions operate Power door lock control system Refer to All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate 
Key -
Certification ECU (Smart key ECU assembly) -
All door entry lock/unlock functions do not operate using the key (for card type), but operate using the keys (for standard)*2 Key battery Refer to INSPECTION
Key (for Card Type) -
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 
Door electrical key oscillator (for driver side) -
Front door outside handle assembly (for driver side) -
Certification ECU (Smart key ECU assembly) -
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 
Door electrical key oscillator (for front passenger side) -
Front door outside handle assembly (for front passenger side) -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Driver side door entry lock/unlock function does not operate Power door lock control system Refer to Driver Side Door Entry Lock and Unlock Functions do not Operate 
Door electrical key oscillator (for driver side) -
Front door outside handle assembly (for driver side) -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Front passenger side door entry lock/unlock function does not operate Power door lock control system Refer to Front Passenger Side Door Entry Lock and Unlock Functions do not Operate 
Door electrical key oscillator (for front passenger side) -
Front door outside handle assembly (for front passenger side) -
Certification ECU (Smart key ECU assembly) -
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 
Door electrical key oscillator (for driver side) -
Front door outside handle assembly (for driver side) -
Certification ECU (Smart key ECU assembly) -
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 
Door electrical key oscillator (for front passenger side) -
Front door outside handle assembly (for front passenger side) -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Room oscillator does not recognize key Indoor electrical key oscillator (for front floor) Refer to Room Oscillator does not Recognize Key 
Indoor electrical key oscillator (for rear floor) -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Luggage compartment door entry unlock function does not operate when key is outside luggage compartment Luggage compartment door opener system Refer to Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment 
Outside electrical key oscillator (for luggage compartment) -
Luggage compartment door opener outer switch -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Key luggage compartment lock-in prevention function does not operate Indoor electrical key oscillator (for luggage compartment) Refer to Key Luggage Compartment Lock-in Prevention Function does not Operate 
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Entry interior alarm does not sound Combination meter assembly Refer to Entry Interior Alarm does not Sound 
Certification ECU (Smart key ECU assembly) -