LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2011 >> LX 570 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> 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 (08/2011 - ) >> Problem Symptoms Table
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Problem Symptoms Table

HINT: 

SMART ACCESS SYSTEM WITH PUSH-BUTTON START

Symptom Suspected Area See
Entry Answer-back Buzzer does not Sound Wireless door lock control system Refer to Entry Answer-back Buzzer does not Sound 
Certification ECU (Smart key ECU assembly) -
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 
Door control transmitter -
Transmitter battery -
Fuse (IMB) -
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 Door control transmitter Refer to All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate 
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 
Door electrical key oscillator -
Front door outside handle assembly LH -
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 -
Front door outside handle assembly RH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Rear Door LH Entry Unlock Function does not Operate Power door lock control system Refer to Rear Door LH Entry Unlock Function does not Operate 
Door electrical key oscillator -
Rear door outside handle assembly LH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Rear Door RH Entry Unlock Function does not Operate Power door lock control system Refer to Rear Door RH Entry Unlock Function does not Operate 
Door electrical key oscillator -
Rear door outside handle assembly RH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Driver Side Door Entry Lock and Unlock Function do not Operate Power door lock control system Refer to Driver Side Door Entry Lock and Unlock Functions do not Operate 
Door electrical key oscillator -
Front door outside handle assembly LH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Front Passenger Side Door Entry Lock and Unlock Function do 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 -
Front door outside handle assembly RH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Rear Door LH Entry Lock and Unlock Function do not Operate Power door lock control system Refer to Rear Door LH Entry Lock and Unlock Functions do not Operate 
Door electrical key oscillator -
Rear door outside handle assembly LH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Rear Door RH Entry Lock and Unlock Function do not Operate Power door lock control system Refer to Rear Door RH Entry Lock and Unlock Functions do not Operate 
Door electrical key oscillator -
Rear door outside handle assembly RH -
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 -
Front door outside handle assembly LH -
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 -
Front door outside handle assembly RH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Rear Door LH Entry Lock Function does not Operate Power door lock control system Refer to Rear Door LH Entry Lock Function does not Operate 
Door electrical key oscillator -
Rear door outside handle assembly LH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Rear Door RH Entry Lock Function does not Operate Power door lock control system Refer to Rear Door RH Entry Lock Function does not Operate 
Door electrical key oscillator -
Rear door outside handle assembly RH -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Room Oscillator does not Recognize Key Indoor electrical key antenna (for front floor) Refer to Room Oscillator does not Recognize Key 
Indoor electrical key antenna (for rear floor) -
Indoor electrical key antenna (for luggage compartment) -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Door control transmitter -
Entry Interior Alarm does not Sound Combination meter Refer to Entry Interior Alarm does not Sound 
Certification ECU (Smart key ECU assembly) -
Back Door Entry Unlock Function does not Operate Power door lock control system Refer to Back Door Entry Unlock Function does not Operate 
Back door opener switch -
Electrical key antenna (for outside luggage compartment) -
Main body ECU -
Harness or connector -
Certification ECU (Smart key ECU assembly) -
Back Door Entry Lock and Unlock Functions do not Operate Power door lock control system Refer to Back Door Entry Lock and Unlock Functions do not Operate 
Back door opener switch -
Electrical key antenna (for outside luggage compartment) -
Main body ECU -
Certification ECU (Smart key ECU assembly) -
Harness or connector -
Back Door Entry Lock Function does not Operate Power door lock control system Refer to Back Door Entry Lock Function does not Operate 
Electrical key antenna (for outside luggage compartment) -
Certification ECU (Smart key ECU assembly) -
Main body ECU -
Harness or connector -