Toyota Avalon (XX50): Navigation System(for Gasoline Model)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System(for Gasoline Model)

"No GPS signal" mark is displayed. AVC-LAN Circuit. Stereo Component Amplifier Malfunction (B15A3)

Navigation Processor Malfunction (B15AD). GPS Antenna Connection Malfunction(short) (B15C0,B15C1). Speed Signal Malfunction (B15C2)

Speaker Output Short (B15C3)

Stereo Component Amplifier Disconnected (B15D3). Telematics Transceiver Disconnected (B15DB). Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)

Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6). Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7). D-Seat ECU Vehicle Information Reading

XM Tuner Antenna Disconnected (B15FE,B15FF). GVIF Disconnected (from Extension Module to H/U) (B153A). AV Signal Stoppage (Low Battery Voltage) (B158F)

Lost Communication with Meter (B1324,B1325)

Extension Module Disconnected 2 (B1543). HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B7,B15BA,B15F9). Extension Module Malfunction 2 (B1556)

Voice Recognition Microphone Disconnected (B1579). USB Device Malfunction (B1585). Black Screen

Camera ECU Malfunction (C1610). Cellular Phone Inspection. Cellular Phone Registration Failure

Cursor or Map Rotates when Vehicle Stopped. Data List / Active Test. Data Signal Circuit between Radio Receiver and Stereo Jack Adapter

Diagnostic Trouble Code Chart. Display does not Dim when Light Control Switch is Turned ON. Does not Play even after Bluetooth Audio Mode is Selected

Dtc Check / Clear. Freeze Frame Data. How To Proceed With Troubleshooting

Illumination Circuit. Illumination for Panel Switch does not Come on with Tail Switch ON. Microphone Circuit

Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier. Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver. No Sound can be Heard from Speakers

Noise Occurs or Sound Skips when Portable Player Plays. Noise Occurs. Operation Check

Panel Switches do not Function. Parking Brake Switch Circuit. Parts Location

Poor Sound Quality in All Modes (Low Volume). Portable Player cannot be Connected Manually/Automatically. Portable Player cannot be Registered

Precaution. Problem Symptoms Table. Radio Broadcast cannot be Received or Poor Reception

Radio Receiver Power Source Circuit. Registered Device cannot be Deleted. Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU

Reverse Signal Circuit. Route cannot be Calculated. Satellite Radio Broadcast cannot be Received

Screen Flicker or Color Distortion. Sound of Portable Player cannot be Heard from Speakers or Sound is Low. Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter. Speaker Circuit. Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECU

Steering Pad Switch Circuit. System Description. System Diagram

Terminals Of Ecu

Touch Panel Switch does not Function. USB Audio System Recognition/Play Error. Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter. Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier. Voice Guidance does not Function

Voice is not Recognized. Weather and traffic information cannot be obtained

Navigation Ecu

"No GPS signal" mark is displayed. AVC-LAN Circuit. Stereo Component Amplifier Malfunction (B15A3)

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Start Function, Gasoline Model): Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION When the engine switch cannot be turned on (ACC) or on (IG), interior verification may be abnormal or there may be a malfunction in the ACC relay or IG relay circuit. If interior verification cannot be performed, the certification ECU (smart key ECU assembly) may be malfunctioning or com ...

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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