Toyota Avalon (XX50): 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

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Audio / Video / Audio And Visual System(for Hv Model) / 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

Data Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

The stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio and display receiver assembly via this circuit.

WIRING DIAGRAM

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO JACK ADAPTER ASSEMBLY)

(a) Disconnect the G106 radio and display receiver assembly connector.

(b) Disconnect the G5 stereo jack adapter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

G106-2 (US1-) - G5-9 (UDO-)

Always

Below 1 Ω

G106-3 (US1+) - G5-10 (UDO+)

Always

Below 1 Ω

G106-5 (USG1) - G5-12 (UJSS)

Always

Below 1 Ω

G106-2 (US1-) or G5-9 (UDO-) - Body ground

Always

10 kΩ or higher

G106-3 (US1+) or G5-10 (UDO+) - Body ground

Always

10 kΩ or higher

G106-5 (USG1) or G5-12 (UJSS) - Body ground

Always

10 kΩ or higher

*a

Front view of wire harness connector

(to Radio and Display Receiver Assembly)

*b

Front view of wire harness connector

(to Stereo Jack Adapter Assembly)

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Audio and Visual System

DTC No.

Detection Item

Link

B1324

Lost Communication with Meter

B1551

HD Radio Tuner Malfunction

B1579

Voice Recognition Microphone Disconnected

B1585

USB Device Malfunction

B158D

Video Signal Stoppage

B158F

AV Signal Stoppage (Low Battery Voltage)

B15A0

LAN Master Malfunction

B15A3

Stereo Component Amplifier Malfunction

B15B0

Display Screen Malfunction

B15B3

Radio Tuner Malfunction

B15B7

Bluetooth Module Malfunction

B15BA

XM Tuner Malfunction

B15C0

GPS Antenna Connection Malfunction(short)

B15C1

GPS Antenna Connection Malfunction(break)

B15C3

Speaker Output Short

B15D3

Stereo Component Amplifier Disconnected

B15DB

Telematics Transceiver Disconnected

B15F5

Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction

B15F6

Main Body ECU Vehicle Information Reading/Writing Process Malfunction

B15F7

Certification ECU Vehicle Information Reading/Writing Process Malfunction

B15F9

UART Communication Malfunction(for A/C)

B15FE

XM Tuner Antenna Disconnected

B15FF

XM Tuner Antenna Short

C1610

Camera ECU Malfunction

U0073

Sending Malfunction (Navigation to APGS)

U0100

Engine ECU Communication

U0129

VSC(ECB)ECU Communication

U0140

Lost Communication with Body Control Module

U0155

Meter ECU Communication

U0164

Air Conditioner ECU Communication

U0198

Lost Communication with Telematic Control Module

U0265

Lost Communication with Image Processing Sensor A

U0293

HV ECU Communication

Display does not Dim when Light Control Switch is Turned ON

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

    Click here

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly may not operate normally.

PROCEDURE

1.

CHECK IMAGE QUALITY SETTING

(a) Turn the light control switch to the tail or head position.

(b) Check that the daytime screen setting on the display adjustment screen is set to on.

Result

Proceed to

Daytime screen setting is set to on.

A

Daytime screen setting is set to off.

B

A

CHANGE DAYTIME SCREEN SETTING TO OFF

B

2.

CHECK VEHICLE SIGNAL (OPERATION CHECK)

(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check.

Click here

(b) Check that the display changes between ON and OFF according to the light control switch operation.

OK:

Light Control Switch

Display

Tail or head

ON

Off or AUTO

OFF

HINT:

  • The display is updated once per second. It is normal for the display to lag behind the actual switch operation.
  • Make sure to move the vehicle to a bright area before performing an operation check with the light control switch in the AUTO position.
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Cellular Phone Inspection. Cellular Phone Registration Failure. Data List / Active Test

Does not Play even after Bluetooth Audio Mode is Selected. Dtc Check / Clear. Freeze Frame Data

See More:

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

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