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: ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Signal Stuck in Range (P107A2A,P107A64)
DESCRIPTION Refer to DTC P107A11. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P107A2A Fuel Rail Pressure Sensor (Low) / Fuel Rail Pressure Sensor "B" Signal Stuck in Range When target low pressure side fuel pressure changes, the cha ...
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Lexus Display
Audio system: Phonebook
Contact settings
Individual phonebooks from up to 5 phones can be registered to the
system.
The data for 2500 contacts (up to 4 numbers per contact) can be registered
into the system's phonebook.
"Contacts/Call History" screen
Go to "Contacts/Call History": "MENU" button → "Setup" → "Ph ...
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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