| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001GL4O |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 11/2022] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier; 2020 - 2023 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 11/2022] | ||
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Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier |
DESCRIPTION
The radio and display receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit.
The sound signal that is sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers.
If there is an open or short in this circuit, sound cannot be heard from the speakers even if the stereo component amplifier assembly or speakers are not malfunctioning.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the I71 radio and display receiver assembly connector.
(b) Disconnect the I68 stereo component amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I68-5 (R+) - I71-1 (FR+) |
Always |
Below 1 Ω |
|
I68-4 (R-) - I71-6 (FR-) |
Always |
Below 1 Ω |
|
I68-3 (L+) - I71-2 (FL+) |
Always |
Below 1 Ω |
|
I68-2 (L-) - I71-7 (FL-) |
Always |
Below 1 Ω |
|
I68-6 (SLD) - Body ground |
Always |
10 kΩ or higher |
|
I68-5 (R+) or I71-1 (FR+) - Body ground |
Always |
10 kΩ or higher |
|
I68-4 (R-) or I71-6 (FR-) - Body ground |
Always |
10 kΩ or higher |
|
I68-3 (L+) or I71-2 (FL+) - Body ground |
Always |
10 kΩ or higher |
|
I68-2 (L-) or I71-7 (FL-) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
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![2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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