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Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Navigation System (For HDD) (Diagnostics - Introduction) >> NAVIGATION SYSTEM (for HDD) >> Problem Symptoms Table >> Problem Symptoms Table

Problem Symptoms Table

HINT: 

Use the table below to help determine the cause of the problem symptom. 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.

DISPLAY FUNCTION

Symptom Suspected Area Reference
Pressing power switch does not turn on system. Display and navigation assembly power source circuit Refer to Display and Navigation Assembly Power Source Circuit
AVC-LAN circuit Refer to AVC-LAN Circuit
Display and navigation assembly Refer to REMOVAL
Black screen (no image appears on navigation/audio screen). Proceed to "No Image Appears on Multi-display" Refer to No Image Appears on Multi-display
Display and navigation assembly power source circuit Refer to Display and Navigation Assembly Power Source Circuit
Illumination circuit Refer to Illumination Circuit
AVC-LAN circuit Refer to AVC-LAN Circuit
Display and navigation assembly Refer to REMOVAL
Illumination for panel switch does not come on with TAIL switch on. Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON" Refer to Illumination for Panel Switch does not Come on with Tail Switch ON
Illumination circuit Refer to Illumination Circuit
Display and navigation assembly Refer to REMOVAL
Display does not dim (night screen) with tail switch on. Proceed to "Display does not Dim when Light Control Switch is Turned ON" Refer to Display does not Dim when Light Control Switch is Turned ON
Dimmer signal circuit Refer to Dimmer Signal Circuit
Display and navigation assembly Refer to REMOVAL
Power does not turn off (the screen remains on). Display and navigation assembly power source circuit Refer to Display and Navigation Assembly Power Source Circuit
Display and navigation assembly Refer to REMOVAL
Panel switches do not function. Proceed to "Panel Switches do not Function" Refer to Panel Switches do not Function
Steering pad switch circuit Refer to Steering Pad Switch Circuit
Display and navigation assembly power source circuit Refer to Display and Navigation Assembly Power Source Circuit
Display and navigation assembly Refer to REMOVAL
Touch panel switch does not function. Proceed to "Touch Panel Switch does not Function" Refer to Touch Panel Switch does not Function
Steering pad switch circuit Refer to Steering Pad Switch Circuit
Display and navigation assembly power source circuit Refer to Display and Navigation Assembly Power Source Circuit
Display and navigation assembly Refer to REMOVAL
Navigation screen is not displayed. Display and navigation assembly Refer to REMOVAL
Navigation screen flicker or color distortion. Proceed to "Screen Flicker or Color Distortion" Refer to Screen Flicker or Color Distortion
Display and navigation assembly Refer to REMOVAL
DVD image cannot be displayed on multi-display (parking brake is on). Proceed to "Display Signal Circuit between Multi-display and Radio Receiver" Refer to Display Signal Circuit between Multi-display and Radio Receiver
Parking brake switch circuit Refer to Parking Brake Switch Circuit
Radio receiver Refer to REMOVAL
Display and navigation assembly Refer to REMOVAL
Navigation function switches can be operated while vehicle is running. Vehicle speed signal circuit Refer to Vehicle Speed Signal Circuit
NAVIGATION FUNCTION

Symptom Suspected Area Reference
Vehicle position mark deviates greatly. Proceed to "Vehicle Position Mark Deviates Greatly" Refer to Vehicle Position Mark Deviates Greatly
Vehicle speed signal circuit Refer to Vehicle Speed Signal Circuit
Navigation antenna assembly Refer to REMOVAL
Display and navigation assembly Refer to REMOVAL
Cursor or map rotates when vehicle is stopped. Proceed to "Cursor or Map Rotates when Vehicle is Stopped" Refer to Cursor or Map Rotates when Vehicle Stopped
Display and navigation assembly Refer to REMOVAL
Vehicle position mark is not updated. Proceed to "Vehicle Position Mark is not Updated" Refer to Vehicle Position Mark is not Updated
Display and navigation assembly Refer to REMOVAL
Current position display does not appear. Display and navigation assembly power source circuit Refer to Display and Navigation Assembly Power Source Circuit
Navigation antenna assembly Refer to REMOVAL
Display and navigation assembly Refer to REMOVAL
GPS Mark is not displayed. Proceed to "GPS Mark is not Displayed" Refer to GPS Mark is not Displayed
Navigation antenna assembly Refer to REMOVAL
Display and navigation assembly Refer to REMOVAL
Voice guidance does not function. Proceed to "Voice Guidance does not Function" Refer to Voice Guidance does not Function
Navigation voice speaker circuit Refer to Navigation Voice Speaker Circuit
Stereo component amplifier Refer to REMOVAL
Map display incomplete. Proceed to "Map Display Incomplete" Refer to Map Display Incomplete
Display and navigation assembly Refer to REMOVAL
Route cannot be calculated. Proceed to "Route cannot be Calculated" Refer to Route cannot be Calculated
Display and navigation assembly Refer to REMOVAL
Voice recognition difficulty. Proceed to "Voice Recognition Difficulty" Refer to Voice Recognition Difficulty
Display and navigation assembly Refer to REMOVAL
Voice is not recognized Proceed to "Voice is not Recognized" Refer to Voice is not Recognized
Microphone circuit between overhead J/B and multi-display Refer to Microphone Circuit between Overhead J/B and Multi-display
Steering pad switch circuit Refer to Steering Pad Switch Circuit
Microphone Refer to REMOVAL
Microphone amplifier -
Display and navigation assembly Refer to REMOVAL
Speed signal does not change in navigation check mode. Vehicle speed signal circuit Refer to Vehicle Speed Signal Circuit
Reverse signal does not change in navigation check mode. Reverse signal circuit Refer to Reverse Signal Circuit
STEERING PAD SWITCH FUNCTION

Symptom Suspected Area Reference
The system cannot be operated by steering pad switch. Steering pad switch circuit Refer to Steering Pad Switch Circuit
Radio receiver Refer to REMOVAL
Illumination for steering pad switch does not come on with tail switch on. Illumination circuit Refer to Illumination Circuit
Radio receiver Refer to REMOVAL
REAR POWER SEAT MODULE SWITCH FUNCTION

Symptom Suspected Area Reference
The system cannot be operated by rear power seat module switch Rear seat control switch power source circuit Refer to Rear Seat Control Switch Power Source Circuit
AVC-LAN circuit Refer to AVC-LAN Circuit
Radio receiver Refer to REMOVAL
Stereo component amplifier Refer to REMOVAL
Rear power seat module switch (for Power Seat) Refer to REMOVAL
Rear power seat module switch (for Ottoman) Refer to REMOVAL
Rear power seat module switch (for Fixed Seat Type) Refer to REMOVAL
"BLUETOOTH" FUNCTION

Symptom Suspected Area Reference
Cellular phone registration failure, phone directory transfer failure. Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" Refer to Cellular Phone Registration Failure, Phone Directory Transfer Failure
Cellular phone cannot send/receive. Proceed to "Cellular Phone cannot Send/Receive" Refer to Cellular Phone cannot Send/Receive
Steering pad switch circuit Refer to Steering Pad Switch Circuit
Radio receiver Refer to REMOVAL
Cannot call in a certain place. Proceed to "Cannot call in a Certain Place" Refer to Cannot Call in a Certain Place
The other caller's voice cannot be heard, is too quiet, or distorted. Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted" Refer to The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted
Display and navigation assembly Refer to REMOVAL
The other caller cannot hear your voice, or your voice is too quiet or distorted. Proceed to "The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted" Refer to The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted
Microphone circuit between overhead J/B and multi-display Refer to Microphone Circuit between Overhead J/B and Multi-display
Microphone Refer to REMOVAL
Microphone amplifier -
Display and navigation assembly Refer to REMOVAL
SOUND LIBRARY FUNCTION

Symptom Suspected Area Reference
"RECORDING ERROR" is displayed Proceed to "Audio cannot be Recorded to HDD" Refer to Audio cannot be Recorded to HDD
CD songs cannot be recorded Proceed to "Audio cannot be Recorded to HDD" Refer to Audio cannot be Recorded to HDD
All songs recorded to HDD cannot be played Proceed to "Audio Recorded to HDD cannot be Played" Refer to Audio Recorded to HDD cannot be Played
HDD cannot be used when temperature is low HDD cannot be used when temperature is low (-20 or less). Wait until cabin temperature has increased and check again. -
Sound is not output only for songs in sound library Sound signal circuit between radio receiver and multi-display Refer to Sound Signal Circuit between Radio Receiver and Multi-display
Sound signal circuit between multi-display controller and navigation assembly* Refer to Sound Signal Circuit between Multi-display Controller and Navigation Assembly
Sound signal circuit between radio receiver and multi-display controller* Refer to Sound Signal Circuit between Radio Receiver and Multi-display Controller
Mute signal circuit between navigation assembly and multi-display controller* Refer to Mute Signal Circuit between Navigation Assembly and Multi-display Controller
Mute signal circuit between radio receiver and multi-display controller* Refer to Mute Signal Circuit between Radio Receiver and Multi-display Controller
Replace radio receiver Refer to REMOVAL
Replace display and navigation assembly Refer to REMOVAL
Titles are not added to recorded songs For new releases or when CDs that are not registered into CDDB are recorded, titles are not added -
Titles are displayed when playing CDs, but titles of songs recorded into HDD are not displayed or titles are incorrect For CD-TEXT type CDs, CD-TEXT title information is given priority and displayed. However, the sound library uses CDDB information. When CDs that are not registered into CDDB are recorded, titles are not added. -

HINT: 

*: w/ Rear Seat Entertainment System

SDARS SYSTEM FUNCTION

Symptom Suspected Area Reference
Satellite radio tuner does not turn ON Satellite radio tuner power source circuit Refer to Satellite Radio Tuner Power Source Circuit
Replace satellite radio tuner Refer to REMOVAL
Cannot change from FM / AM to satellite radio Proceed to "Cannot Change from FM / AM to Satellite Radio" Refer to Cannot Change from FM / AM to Satellite Radio
AVC-LAN circuit Refer to AVC-LAN Circuit
AVC-LAN plus circuit Refer to AVC-LAN Plus Circuit
Replace satellite radio tuner Refer to REMOVAL
Satellite radio broadcast cannot be received or reception is bad Proceed to "Satellite Radio Broadcast cannot be Received" Refer to Satellite Radio Broadcast cannot be Received
Satellite radio tuner power source circuit Refer to Satellite Radio Tuner Power Source Circuit
Replace satellite radio tuner Refer to REMOVAL
Only for satellite radio, sound from all speakers is not output or there is noise Proceed to "Noise Occurs Only with Satellite Radio" Refer to Noise Occurs Only with Satellite Radio
Satellite radio tuner power source circuit Refer to Satellite Radio Tuner Power Source Circuit
Replace satellite radio tuner Refer to REMOVAL
Only for satellite radio, sound from certain speakers is not output or there is noise Proceed to "Noise Occurs Only with Satellite Radio" Refer to Noise Occurs Only with Satellite Radio
Satellite radio tuner power source circuit Refer to Satellite Radio Tuner Power Source Circuit
Replace satellite radio tuner Refer to REMOVAL
Satellite radio cannot receive pay type broadcasts Proceed to "Satellite Radio cannot Receive Pay type Broadcasts" Refer to Satellite Radio cannot Receive Pay Type Broadcasts
Satellite radio broadcast cannot be selected Proceed to "Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory" Refer to Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory
Replace satellite radio tuner Refer to REMOVAL
Satellite radio broadcast cannot be selected or after selecting broadcast, broadcast cannot be added into memory Proceed to "Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory" Refer to Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory
Replace radio receiver Refer to REMOVAL
Replace display and navigation assembly Refer to REMOVAL
Traffic information is not displayed Proceed to "Traffic Information is not Displayed" Refer to Traffic Information is not Displayed
AVC-LAN plus circuit Refer to AVC-LAN Plus Circuit
Replace satellite radio tuner Refer to REMOVAL
Replace display and navigation assembly Refer to REMOVAL
"Nav Traffic" logo is not displayed Proceed to "Traffic Information is not Displayed" Refer to Traffic Information is not Displayed
AVC-LAN plus circuit Refer to AVC-LAN Plus Circuit
Replace satellite radio tuner Refer to REMOVAL
Replace display and navigation assembly Refer to REMOVAL