Lexus NX: Smart Access System With Push-button Start (for Entry Function)
Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Access System With Push-button Start (for Entry Function)
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Customize Parameters
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Operation History List
- Open in Driver Side Electrical Antenna Circuit (B27A1)
- Open in Front Passenger Side Electrical Antenna Circuit (B27A2)
- Open in Rear Door Electrical Antenna Circuit, Drivers Side (B27A3)
- Open in Rear Door Electrical Antenna Circuit, Front Passengers Side (B27A4)
- Open in Front Floor Electrical Key Oscillator Circuit (B27A5)
- Open in Rear Floor Electrical Key Oscillator Circuit (B27A6)
- Open in Inside Luggage Compartment Electrical Key Oscillator Circuit (B27A7)
- Open in Outside Luggage Compartment Electrical Key Antenna Circuit (B27A8)
- All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate
- All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate
- Driver Side Door Entry Unlock Function does not Operate
- Front Passenger Side Door Entry Unlock Function does not Operate
- Rear Door LH Entry Unlock Function does not Operate
- Rear Door RH Entry Unlock Function does not Operate
- Driver Side Door Entry Lock and Unlock Functions do not Operate
- Front Passenger Side Door Entry Lock and Unlock Functions do not Operate
- Rear Door LH Entry Lock and Unlock Functions do not Operate
- Rear Door RH Entry Lock and Unlock Functions do not Operate
- Driver Side Door Entry Lock Function does not Operate
- Front Passenger Side Door Entry Lock Function does not Operate
- Rear Door LH Entry Lock Function does not Operate
- Rear Door RH Entry Lock Function does not Operate
- Room Oscillator does not Recognize Key
- Entry Interior Alarm does not Sound
- Back Door Entry Unlock Function does not Operate
- Back Door Entry Lock and Unlock Functions do not Operate
- Back Door Entry Lock Function does not Operate
- New Key cannot be Registered
- Additional Key cannot be Registered
- Entry Unlock and Unlatch Functions do not Operate Using Kick Sensor
- Lock Function (Entry Lock Function does not Operate Using Close &)
- Entry Exterior Alarm and Answer-back Buzzer do not Sound
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Precaution
PRECAUTION CAUTION REGARDING INTERFERENCE WITH ELECTRONIC DEVICES CAUTION:
People with implantable cardiac pacemakers, cardiac resynchronization therapy-pacemakers or implantable cardioverter defib
Parts Location
PARTS LOCATION ILLUSTRATION *1 NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - AM2 FUSE *2 NO. 2 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - ECU-B NO.1 FUSE ILLUSTRA
System Diagram
SYSTEM DIAGRAM CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Component Function Front door outside handle assembly Receives request signals from the certification ECU (smart key ECU assembly
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System Diagram
SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line Main body ECU (multiplex network body ECU) Outer mirror control ECU assembly LH and RH
Mirror surface adjust switch signal
Mirror select switch signal
Mirror retract switch signal
CAN Mirror position
Brake Booster Pump Motor on Time Abnormally Long (C1252,C1253)
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) detects decreases in the accumulator pressure according to the data from the accumulator pressure sensor, and then starts and stops the pump motor by operating the motor relay. DTC No. Detection Item INF Code DTC
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