Toyota 4Runner: Audio And Visual System
Toyota 4Runner Service Manual / Audio / Visual / Telematics / Audio / Video / Audio And Visual System
- Precaution
- Parts Location
- System Diagram
- System Description
- 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
- Sending Malfunction (Navigation to APGS) (U0073,U0140)
- XM Tuner Antenna Disconnected (B15FE,B15FF)
- Speaker Output Short (B15C3)
- GPS Antenna Connection Malfunction(short) (B15C0,B15C1)
- XM Tuner Malfunction (B15BA)
- AV Signal Stoppage (Low Battery Voltage) (B158F)
- USB Device Malfunction (B1585)
- Voice Recognition Microphone Disconnected (B1579)
- LVDS Signal Malfunction (from Extension Module) (B1532)
- HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B4,B15B7)
- 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 CD is Played (Volume is Too Low)
- CD cannot be Ejected
- CD cannot be Inserted / Played or CD 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)
- 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
- Black Screen
- Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter
- Steering Pad Switch Circuit
- Illumination Circuit
- Parking Brake Switch Circuit
- Speaker Circuit
- Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
- Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
- Data Signal Circuit between Radio Receiver and Extension Module
- Reverse Signal Circuit
- Microphone Circuit between Microphone and Radio Receiver
- Radio Receiver Power Source Circuit
Amplifier Antenna
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE ROOF HEADLINING ASSEMBLY
(See page )
2. REMOVE AMPLIFIER ANTENNA ASSEMBLY
(a) Disconnect the 3 connect ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs depending on the specifications
of the vehicle. The expressions listed in the table below are u ...
Other materials about Toyota 4Runner:
Occupant Classification ECU Malfunction (B1795)
DESCRIPTION
DTC B1795 is stored when a malfunction is detected in the occupant classification
ECU.
Troubleshoot DTC B1771 first when both DTCs B1771 and B1795 are present.
DTC Code
DTC Detection Condition
Trouble Area
...
Room Temperature Sensor Circuit (B1411/11)
DESCRIPTION
The cooler thermistor (room temperature sensor) for the front seat is installed
in the instrument panel to detect the room temperature and control the heater and
air conditioner auto mode. The resistance of the room temperature sensor changes ...
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