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
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WIRING DIAGRAM
PROCEDURE
1.
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CHECK VOICE GUIDANCE SETTING
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(a) Check that the voice guidance settings are not off.
OK:
Voice guidance settings are not off.
NG |
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CHANGE THE VOICE GUIDANCE SETTINGS TO ON
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OK
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|
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2.
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CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU)
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(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
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Condition
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Specified Condition
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D197-22 (SI+) - D199-6 (VOI+)
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Always
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Below 1 Ω
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D197-23 (SI-) - D199-7 (VOI-)
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Always
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Below 1 Ω
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D197-22 (SI+) or D199-6 (VOI+) - Body ground
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Always
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10 kΩ or higher
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D197-23 (SI-) or D199-7 (VOI-) - Body ground
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Always
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10 kΩ or higher
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D199-8 (SLD1) - Body ground
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Always
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10 kΩ or higher
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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