Lexus RX (RX 350L, RX450h) 2016-2023 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
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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
- General
- Audio & Visual & Telematics
- Brake
- Drivetrain
- Engine & Hybrid System
- Power Source & Network
- Steering
- Suspension
- Vehicle Exterior
- Vehicle Interior
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