Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: 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 | .gif) | CHANGE VOICE GUIDANCE SETTINGS TO ON |
|
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| 2. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the J149 radio receiver assembly connector.
(b) Disconnect the J153 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J149-22 (SI+) - J153-6 (VOI+) | Always | Below 1 Ω |
| J149-23 (SI-) - J153-7 (VOI-) | Always | Below 1 Ω |
| J149-22 (SI+) or J153-6 (VOI+) - Body ground | Always | 10 kΩ or higher |
| J149-23 (SI-) or J153-7 (VOI-) - Body ground | Always | 10 kΩ or higher |
| J153-8 (SLD1) - Body ground | Always | 10 kΩ or higher |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
"No GPS signal" mark is displayed
CAUTION / NOTICE / HINT NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precau ...
Voice is not Recognized
PROCEDURE 1. CHECK CONDITION (a) While paying attention to the condition of the spoken voice command, perform a voice recognition operation. OK: Voice command is recognized normally. HINT: ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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