Toyota Lexus Gs430, Gs300. Uzs190 Grs190NAVIGATION NAVIGATION SYSTEM PRECAUTION PARTS LOCATION SYSTEM DIAGRAM SYSTEM DESCRIPTION HOW TO PROCEED WITH TROUBLESHOOTING DISPLAY CHECK MODE NAVIGATION CHECK MODE PROBLEM SYMPTOMS TABLE TERMINALS OF ECU DTC CHECK / CLEAR DIAGNOSTIC TROUBLE CODE CHART 01-21 01-DD 01-22 01-DF 01-D5 01-E0 01-D8 01-E0 01-D9 01-E0 01-DA 01-E0 01-DB 01-E3 01-DC 01-E0 01-DE 01-E2 01-D6 01-E2 01-D7 01-E2 01-D6 01-E2 01-D7 01-E3 01-D6 01-E4 01-D7 01-E3 01-D6 01-E3 01-D7 01-E4 01-D6 01-E3 01-D7 01-E4 01-DC 01-E4 01-DC 21-10 01-DC 21-11 01-DC 34-10 01-DC 34-11 01-DD 34-12 01-DF 58-10 01-DD 58-11 01-DF 58-40 01-E1 58-41 01-DD 58-42 01-DF 58-43 01-E1 58-44 01-DD 58-45 01-DF Black Screen (No Image Appears on Navigation and Audio Screen) Illumination for Panel Switch does not Come on with Tail Switch ON Display does not DIM (Night Screen) with Tail Switch ON Panel Switches do not Function Touch Panel Switch does not Function Screen Flicker or Color Distortion MAP Disc cannot be Inserted Vehicle Position Mark Deviates Greatly Cursor or MAP Rotates when Vehicle Stopped Vehicle Position Mark is not Updated Current Position Display does not Appear GPS Mark is not Displayed Voice Guidance does not Function MAP Display Incomplete Route cannot be Calculated GYRO Error MAP Disc Read Error Speed Signal Error Voice Recognition Difficulty Voice is not Recognized Cellular Phone Registration Failure, Phone Directory Transfer Failure Cellular Phone cannot Send / Receive Cannot Call in a Certain Place Voice on Phone cannot be Heard, too Quiet or Distorted Own Voice cannot be Heard, too Quiet or Distorted Parking Brake Switch Circuit AVC-LAN Circuit between Radio Receiver and AMP AVC-LAN Circuit between Radio Receiver and Gateway ECU AVC-LAN Circuit between Navigation ECU and Multi-Display AVC-LAN Circuit between Radio Receiver and Multi-Display Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter Vehicle Speed Signal Circuit between Multi-display and Combination Meter Reverse Signal Circuit Navigation Voice Speaker Circuit Microphone Circuit between Overhead J/B and Multi-display Dimmer Signal Circuit AVC-LAN Circuit between Multi-display and Television Camera ECU Radio Receiver Power Source Circuit Stereo Component Amplifier Power Source Circuit Multi-display Power Source Circuit Navigation ECU Power Source Circuit Television Camera ECU Power Source Circuit NAVIGATION ECU COMPONENTS REMOVAL INSTALLATION NAVIGATION ANTENNA COMPONENTS REMOVAL INSTALLATION