| Last Modified: 06-05-2026 | 6.11:8.1.0 | Doc ID: RM100000001D0B9 |
| Model Year Start: 2019 | Model: GR Corolla | Prod Date Range: [06/2018 - 11/2022] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier; 2019 - 2023 MY GR Corolla Corolla Corolla Hatchback Corolla HV [06/2018 - 11/2022] | ||
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Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier |
DESCRIPTION
This circuit is used when the voice switch of the steering pad switch assembly is pushed.
Using this circuit, the radio and display receiver assembly sends signals to the stereo component amplifier assembly.
WIRING DIAGRAM
PROCEDURE
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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 |
|---|---|---|
|
I71-3 (RL+) - I68-15 (II1+) |
Always |
Below 1 Ω |
|
I71-8 (RL-) - I68-14 (II1-) |
Always |
Below 1 Ω |
|
I68-18 (SLD1) - Body ground |
Always |
10 kΩ or higher |
|
I71-3 (RL+) or I68-15 (II1+) - Body ground |
Always |
10 kΩ or higher |
|
I71-8 (RL-) or I68-14 (II1-) - Body ground |
Always |
10 kΩ or higher |
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![2019 MY Corolla Hatchback [06/2018 - 01/2019]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
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