Audio Visual

Toyota Lexus Is250, Is220D. Gse20 Ale20

AUDIO / VISUAL

AUDIO AND VISUAL SYSTEM

SYSTEM DESCRIPTION

HOW TO PROCEED WITH TROUBLESHOOTING

IDENTIFICATION OF NOISE SOURCE

PROBLEM SYMPTOMS TABLE

TERMINALS OF ECU

DTC CHECK / CLEAR

DIAGNOSTIC TROUBLE CODE CHART

Pressing Power Switch does not Turn on System

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

Radio Broadcast cannot be Received or Poor Reception

Poor Sound Quality in All Modes (Low Volume)

Steering Pad Switch Circuit

Illumination Circuit

Speaker Circuit

Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier

AVC-LAN Circuit

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter

DVD Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

Gateway ECU Communication Error

Radio Receiver Communication Error

Stereo Component Amplifier Communication Error

Integration Control and Panel Assembly Communication Error

Radio Receiver Power Source Circuit

Stereo Component Amplifier Power Source Circuit

Gateway ECU Power Source Circuit

Integration Control and Panel Assembly Power Source Circuit

RADIO RECEIVER

STEREO COMPONENT AMPLIFIER

FRONT SIDE SPEAKER

ON-VEHICLE INSPECTION

FRONT CENTER SPEAKER (w/ Front Center Speaker)

ON-VEHICLE INSPECTION

REAR SIDE SPEAKER

ON-VEHICLE INSPECTION

REAR CENTER SPEAKER

ON-VEHICLE INSPECTION

RADIO ANTENNA CORD

AMPLIFIER ANTENNA

AUDIO TERMINAL

NETWORK GATEWAY ECU

STEERING PAD SWITCH

MICROPHONE

WINDOW GLASS ANTENNA WIRE

ON-VEHICLE INSPECTION