Lexus NX: Smart Access System With Push-button Start (for Start Function)
Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Access System With Push-button Start (for Start Function)
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Operation Check
- Customize Parameters
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Diagnostic Trouble Code Chart
- Ignition Hold Monitor Malfunction (B2271)
- ACC Monitor Malfunction (B2274)
- STSW Monitor Malfunction (B2275)
- Detecting Vehicle Submersion (B2277)
- Vehicle Speed Signal Malfunction (B2282,B2283)
- Steering Lock Position Signal Circuit Malfunction (B2285)
- Lost Communication with Main Body ECU (U0140,U0142,U0155,U0293,U1117)
- Power Source Mode does not Change to ON (IG)
- Power Source Mode does not Change to ON (ACC)
- Power Source Mode does not Change to ON (READY)
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Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE:
After the power switch is turned off, there may be a waiting time before disconnecting the negative (-
Parts Location
PARTS LOCATION ILLUSTRATION *1 NO. 1 ENGINE ROOM RELAY BLOCK - IG2-MAIN RELAY *2 NO. 2 ENGINE ROOM RELAY BLOCK - IG1 RELAY *3 SKID CONTROL ECU (BRAKE BOOSTER WITH MASTER CYLINDER ASSEM
System Diagram
SYSTEM DIAGRAM Component Outline Power switch
Transponder key amplifier
Turns on the power and starts the hybrid control system.
Contains a built-in transponder key amplifier t
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Removal
REMOVAL PROCEDURE 1. PRECAUTION Click here 2. CHECK FOR DTC (a) Check for DTCs. Click here NOTICE: Confirm that P0AA6 (Hybrid Battery Voltage System Isolation Fault) is not output before removing or installing an HV battery module. If this DTC is output, perform troubleshooting for this DTC firs
Components
COMPONENTS ILLUSTRATION *1 AIR CLEANER CAP AND HOSE *2 EGR VALVE ASSEMBLY *3 NO. 1 ENGINE COVER SUB-ASSEMBLY *4 GASKET *5 NO. 1 EGR PIPE *6 NO. 1 WATER BY-PASS HOSE *7 NO. 2 WATER BY-PASS HOSE *8 FUEL VAPOR FEED HOSE *9 NO. 2 FUEL VAPOR FEED HOSE *10
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