| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018QT3 |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Voice Guidance does not Function; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
Voice Guidance does not Function |
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK VOICE GUIDANCE SETTING |
(a) Check that the voice guidance settings are not off.
OK:
Voice guidance settings are not off.
| NG |
|
CHANGE THE VOICE GUIDANCE SETTINGS TO ON |
|
|
2. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the D197 radio and display receiver assembly connector.
(b) Disconnect the D199 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D197-22 (SI+) - D199-6 (VOI+) |
Always |
Below 1 Ω |
|
D197-23 (SI-) - D199-7 (VOI-) |
Always |
Below 1 Ω |
|
D197-22 (SI+) or D199-6 (VOI+) - Body ground |
Always |
10 kΩ or higher |
|
D197-23 (SI-) or D199-7 (VOI-) - Body ground |
Always |
10 kΩ or higher |
|
D199-8 (SLD1) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
![2018 MY Sienna [11/2017 - 08/2018]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|