| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM10000000271XC |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Knobless Radio and Display Receiver): Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage Device or "iPod"; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] | ||
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Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage Device or "iPod" |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.
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![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Knobless Radio and Display Receiver): PRECAUTION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
INSPECT ANTENNA CORD SUB-ASSEMBLY (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY) |
(a) Disconnect the x5 radio and display receiver assembly connector.
(b) Disconnect the x4 No. 1 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 |
|---|---|---|
|
x5-2(US1-) - x4-4(D-) |
Always |
Below 1 Ω |
|
x5-3(US1+) - x4-1(D+) |
Always |
Below 1 Ω |
|
x5-5(USG1) - x4-5(UJSS) |
Always |
Below 1 Ω |
|
x5-2(US1-) or x4-4(D-) - Body ground |
Always |
10 kΩ or higher |
|
x5-3(US1+) or x4-1(D+) - Body ground |
Always |
10 kΩ or higher |
|
x5-5(USG1) or x4-5(UJSS) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPLACE ANTENNA CORD SUB-ASSEMBLY
|
|
|
2. |
CHECK NO. 1 STEREO JACK ADAPTER ASSEMBLY |
(a) Replace the No. 1 stereo jack adapter assembly with a new or known good one.
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(b) Check if the problem symptom recurs.
|
Result |
Proceed to |
|---|---|
|
Malfunction disappears |
A |
|
Malfunction occurs |
B |
| A |
|
END (NO. 1 STEREO JACK ADAPTER ASSEMBLY MALFUNCTION) |
| B |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
|
|
|