| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001D0AE |
| Model Year Start: 2019 | Model: GR Corolla | Prod Date Range: [06/2018 - 11/2022] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Voice Guidance does not Function; 2019 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 11/2022] | ||
|
Voice Guidance does not Function |
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK VOICE GUIDANCE SETTING |
(a) Check that the voice guidance setting is not off.
OK:
Voice guidance setting is not off.
| NG |
|
CHANGE VOICE GUIDANCE SETTING TO ON |
|
|
2. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the I57 radio and display receiver assembly connector.
(b) Disconnect the I69 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I57-22 (SI+) - I69-6 (VOI+) |
Always |
Below 1 Ω |
|
I57-23 (SI-) - I69-7 (VOI-) |
Always |
Below 1 Ω |
|
I57-22 (SI+) or I69-6 (VOI+) - Body ground |
Always |
10 kΩ or higher |
|
I57-23 (SI-) or I69-7 (VOI-) - Body ground |
Always |
10 kΩ or higher |
|
I69-8 (SLD1) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
![2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|