Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Voice Guidance does not Function
WIRING DIAGRAM
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 Precaution for Audio and Visual System.
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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 THE 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 |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | CHECK AUDIO FUNCTION |
(a) Check that sound can be heard from a front speaker.
OK:
Sound can be heard.
| OK | | REPLACE NAVIGATION ECU |
| NG | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
"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: ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual > Basic operation of the
Remote Touch screen: Remote Touch
The Remote Touch can be used to operate the Remote Touch screens.
For details, refer to the "NAVIGATION SYSTEM OWNER'S MANUAL".
Vehicles with 8-inch display
Vehicles with 12.3-inch display
"HOME" button
Press this button to display the home screen.
*
button
Press this button t ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Climate Control Seat System: Parts Location
PARTS LOCATION ILLUSTRATION *1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - ECU-IG1 NO. 9 FUSE - - ILLUSTRATION *1 REFRESHING SEAT SWITCH (for Front Side) *2 COMBINATION METER ASSEMBLY *3 AIR CONDITIONING AMPLIFIER ASSEMBLY *4 INSTRUMENT PANEL JUNCTION BLOCK ...
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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