Toyota 4Runner: Navigation System
Toyota 4Runner Service Manual / Audio / Visual / Telematics / Navigation / Multi Info Display / Navigation System
- Precaution
- Parts Location
- System Description
- System Diagram
- How To Proceed With Troubleshooting
- Operation Check
- Problem Symptoms Table
- Terminals Of Ecu
- Dtc Check / Clear
- Freeze Frame Data
- Data List / Active Test
- Diagnostic Trouble Code Chart
- LVDS Signal Malfunction (from Extension Module) (B1532)
- HD Radio Tuner Malfunction (B1551,B15A0,B15AD,B15B0,B15B3,B15B4,B15B7)
- Voice Recognition Microphone Disconnected (B1579)
- USB Media Malfunction (B1585)
- SD Card Communication Malfunction (B158C)
- AV Signal Stoppage (Low Battery Voltage) (B158F)
- Stereo Component Amplifier Malfunction (B15A3)
- XM Tuner Malfunction (B15BA)
- GPS Antenna Connection Malfunction(short) (B15C0,B15C1)
- Speed Signal Malfunction (B15C2)
- Speaker Output Short (B15C3)
- Stereo Component Amplifier Disconnected (B15D3)
- XM Tuner Antenna Disconnected (B15FE,B15FF)
- Sending Malfunction (Navigation to APGS) (U0073,U0140)
- Satellite Radio Broadcast cannot be Received
- Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory
- Traffic Information is not Displayed
- 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 Ejected
- Disc cannot be Inserted or is Ejected Right After Insertion
- CD 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
- Touch Panel Switch does not Function
- Screen Flicker or Color Distortion
- Poor Sound Quality in All Modes (Low Volume)
- Cursor or Map Rotates when Vehicle Stopped
- GPS Mark is not Displayed
- Voice Guidance does not Function
- Route cannot be Calculated
- Voice is not Recognized
- Cellular Phone Registration Failure
- Cellular Phone Inspection
- Confirm Cellular Phone Functionality
- Confirm Vehicle Headunit Functionality
- Sound of Portable Player cannot be Heard from Speakers or Sound is Low
- Does not Play even after Bluetooth Audio Mode is Selected
- Noise Occurs or Sound Skips when Portable Player Plays
- Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device
- Portable Player cannot be Connected Manually/Automatically
- Registered Device cannot be Deleted
- Portable Player cannot be Registered
- USB Audio System Recognition/Play Error
- Black Screen
- Steering Pad Switch Circuit
- Illumination Circuit
- Parking Brake Switch Circuit
- Speaker Circuit
- Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier
- Data Signal Circuit between Navigation Receiver Assembly and Extension Module
- Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter
- Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter
- Mute Signal Circuit between Navigation Receiver Assembly 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
- Reverse Signal Circuit
- Navigation Voice Circuit
- Microphone Circuit between Microphone and Navigation Receiver Assembly
- Stereo Component Amplifier Power Source Circuit
- Navigation Receiver Assembly Power Source Circuit
Navigation Receiver
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the n ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicles. The expressions listed in the table below are ...
Other materials about Toyota 4Runner:
Meter Illumination does not Dim at Night
DESCRIPTION
If the dimmer switch is turned to TAIL, HEAD or AUTO, the main body ECU sends
a TAIL relay signal, panel light illumination signal, panel relay signal and TAIL
cancel OFF signal to the combination meter. Then the meter and accessory meter beco ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
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