Lexus NX: Audio And Visual System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Operation Check
- Customize Parameters
- Problem Symptoms Table
- Terminals Of Ecu
- Dtc Check / Clear
- Freeze Frame Data
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Lost Communication with Haptic Device (B1323-B1326)
- HD Radio Tuner Malfunction (B1551,B15A0,B15B3,B15B5,B15B7,B15BA,B15F9)
- Touch Pad Sensor Malfunction (B1559)
- Touch Pad Vibration Driver Malfunction (B155A)
- Touch Pad Memory Module Malfunction (B155B)
- GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) (B1575)
- Voice Recognition Microphone Disconnected (B1579)
- USB Device Malfunction (B1585)
- AV Signal Stoppage (Low Battery Voltage) (B158F)
- Stereo Component Amplifier Malfunction (B15A3)
- Display Malfunction (B15A6,B15B0)
- Short in GPS Antenna (B15C0,B15C1)
- Speaker Output Short (B15C3)
- Stereo Component Amplifier Disconnected (B15D3)
- Display Disconnected (B15D6)
- Telematics Transceiver Disconnected (B15DB)
- Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
- Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
- Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)
- D-Seat ECU Vehicle Information Reading/Writing Process Malfunction (B15F8)
- XM Tuner Antenna Disconnected (B15FE,B15FF)
- Back Camera Disconnected (C1622)
- Sending Malfunction (Navigation to APGS) (U0073,U0100,U0129,U0140,U0155,U0164,U0198,U023B,U0265,U0293,U1110)
- Satellite Radio Broadcast cannot be Received
- Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory
- Noise Occurs
- No Sound can be Heard from Speakers
- Sound Quality is Bad Only when Disc is Played (Volume is Too Low)
- Disc cannot be Inserted or is Ejected Right After Insertion
- Disc cannot be Ejected
- CD/DVD Sound Skips
- Radio Broadcast cannot be Received or Poor Reception
- Illumination for Panel Switch does not Come on with Tail Switch ON
- Display does not Dim when Light Control Switch is Turned ON
- Panel Switches do not Function
- Screen Flicker or Color Distortion
- Poor Sound Quality in All Modes (Low Volume)
- "No GPS signal" mark is displayed
- Voice Guidance does not Function
- Voice is not Recognized
- Cellular Phone Registration Failure
- Cellular Phone Inspection
- Sound of Portable Player cannot be Heard from Speakers or Sound is Low
- Does not Play even after Bluetooth Audio Mode is Selected
- Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device
- Noise Occurs or Sound Skips when Portable Player Plays
- Portable Player cannot be Connected Manually/Automatically
- Registered Device cannot be Deleted
- Portable Player cannot be Registered
- USB Audio System Recognition/Play Error
- Stereo Jack Adapter Light does not Illuminate
- Remote Touch Screen Does not Generate Vibration Feedback
- Switch Lights of Remote Touch do not Illuminate
- Switch Lights of Remote Touch Always Illuminate or cannot be Controlled Using Rheostat
- Switch Operation of Remote Touch not Accepted
- Pointer Displayed/not Displayed Repeatedly
- Pointer not Displayed on Screen or Pointer does not Move
- Black Screen
- Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter
- Steering Pad Switch Circuit
- Illumination Circuit
- Speaker Circuit
- Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier
- Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
- Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
- Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier
- Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver
- AVC-LAN Circuit
- Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
- Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier
- Microphone Circuit
- Visual Mute Signal Circuit between Radio Receiver and Multi-display
- Radio Receiver Power Source Circuit
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Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE: After the power switch is turned off, the radio receiver assembly records various types of memory and set
Parts Location
PARTS LOCATION ILLUSTRATION *1 NO. 2 ENGINE ROOM RELAY BLOCK - DCM FUSE (w/ Manual [SOS] Switch) - ECU-B NO.5 FUSE - ECU-B NO.1 FUSE *2 NO. 1 ENGINE ROOM RELAY BLOCK - AMP FUSE - RADIO FUSE
System Diagram
SYSTEM DIAGRAM
SEE MORE:
Removal
REMOVAL PROCEDURE 1. REMOVE RAIN SENSOR COVER (a) Detach the 2 claws and remove the rain sensor cover. 2. REMOVE RAIN SENSOR (a) Disconnect the connector. (b) Release the stopper by pulling it down. *1 Stopper (c) Remove the rain sensor as sho
Extension Module Malfunction 2 (B1556)
DESCRIPTION These DTCs are stored when a malfunction occurs in the Navigation ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B1556 Extension Module Malfunction 2 When any of the following conditions is met:
Internal hard drive malfunction
EEPROM error
Storag
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