AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): Data Signal Circuit between Radio Receiver and Stereo Jack Adapter; 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001KQ5E
Model Year Start: 2020	Model: GR Corolla	Prod Date Range: [09/2019 - 04/2020]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): Data Signal Circuit between Radio Receiver and Stereo Jack Adapter; 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]

Data Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

The No. 1 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

for Hatchback Model

for Sedan Model

PROCEDURE

1.	CHECK MODEL

(a) Choose the model to be inspected.

Result	Proceed to
for Hatchback Model	A
for Sedan Model	B

GO TO STEP 3

2.	CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

(a) Disconnect the x2 radio and display receiver assembly connector.

(b) Disconnect the x1 No. 1 stereo jack adapter assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
x2-2 (US1-) - x1-9 (UDO-)	Always	Below 1 Ω
x2-3 (US1+) - x1-10 (UDO+)	Always	Below 1 Ω
x2-5 (USG1) - x1-12 (UJSS)	Always	Below 1 Ω
x2-2 (US1-) or x1-9 (UDO-) - Body ground	Always	10 kΩ or higher
x2-3 (US1+) or x1-10 (UDO+) - Body ground	Always	10 kΩ or higher
x2-5 (USG1) or x1-12 (UJSS) - Body ground	Always	10 kΩ or higher

Front view of wire harness connector

(to Radio and Display Receiver Assembly)

Front view of wire harness connector

(to No. 1 Stereo Jack Adapter Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

3.	CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

(a) Disconnect the I115 radio and display receiver assembly connector.

(b) Disconnect the I114 No. 1 stereo jack adapter assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
I115-2 (US1-) - I114-9 (UDO-)	Always	Below 1 Ω
I115-3 (US1+) - I114-10 (UDO+)	Always	Below 1 Ω
I115-5 (USG1) - I114-12 (UJSS)	Always	Below 1 Ω
I115-2 (US1-) or I114-9 (UDO-) - Body ground	Always	10 kΩ or higher
I115-3 (US1+) or I114-10 (UDO+) - Body ground	Always	10 kΩ or higher
I115-5 (USG1) or I114-12 (UJSS) - Body ground	Always	10 kΩ or higher

Front view of wire harness connector

(to Radio and Display Receiver Assembly)

Front view of wire harness connector

(to No. 1 Stereo Jack Adapter Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR