Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2006SEQUOIA 4WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTNAVIGATION SYSTEM
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)
Navigation System
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)SECTION Navigation System
Service Precautions
Description and Operation
Testing and Inspection- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Symptom Related Diagnostic Procedures
- Problem Symptoms Table
- Black Screen
- CD Cannot be Ejected
- CD Cannot be Inserted / Played or CD is Ejected Right After Insertion
- CD Sound Skips
- Current Position Display Does Not Appear
- Cursor or MAP Rotates When Vehicle Stopped
- Display Does Not Dim When Light Control Switch Is Turned On
- Display Panel Does Not Open, Tilt or Tilts Improperly
- GPS Mark Is Not Displayed
- Gyro Error
- Identification of Noise Source
- Illumination For Panel Switch Does Not Come On With Tail Switch On
- Map Disc Cannot be Ejected
- Map Disc Cannot be Inserted
- Map Disc Read Error
- Map Display Incomplete
- No Sound Can be Heard from Speakers
- Noise Occurs
- Panel Switches Do Not Function
- Poor Sound Quality In All Modes (Low Volume)
- Pressing Power Switch Does Not Turn On System
- Radio Broadcast Cannot be Received or Poor Reception
- Route Cannot be Calculated
- Screen Flicker or Color Distortion
- Speed Signal Error
- Touch Panel Switch Does Not Function
- Vehicle Position Mark Deviates Greatly
- Vehicle Position Mark Is Not Updated
- Voice Guidance Does Not Function
- Component Tests and General Diagnostics
- Amplifier Mute Signal Circuit
- Amplifier Sound Signal Circuit
- AVC-LAN Circuit Between Radio Receiver and Stereo Component Amplifier
- Display Check Mode
- Illumination Circuit
- Navigation Check Mode
- Navigation Voice Speaker Circuit
- Radio Receiver Power Source Circuit
- Reverse Signal Circuit
- Speaker Circuit
- Speed Signal Circuit
- Steering Pad Switch Circuit
- Stereo Component Amplifier Power Source Circuit
- System Normal Condition Check
- Pinout Values and Diagnostic Parameters
Locations
Diagrams- Diagram Information and Instructions
- Diagnostic Aids
- How to Troubleshoot ECU Controlled Systems
- How to Troubleshoot Electrical Circuits
- Electrical Diagrams
Tools and Equipment
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.