Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Radio Receiver Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the radio receiver assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the J148 and J151 radio receiver assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J148-1 (GND1) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J148-4 (+B1) - J148-1 (GND1) | Always | 11 to 14 V |
| J148-15 (ACC1) - J148-1 (GND1) | Engine switch on (ACC) | 11 to 14 V |
| J151-19 (IG) - J148-1 (GND1) | Engine switch on (IG) | 11 to 14 V |
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Microphone Circuit
DESCRIPTION
The radio receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
Using this circuit, the DCM (telemati ...
Visual Mute Signal Circuit between Radio Receiver and Multi-display
DESCRIPTION The radio receiver assembly sends a visual mute signal to the multi-display assembly. As a result, a black screen is displayed when the screen changes so that noise and distorted images ar ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Certification Ecu: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during certification ECU (smart key ECU assembly) removal/installation are shown below. Necessary Procedure Af ...
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Do-it-yourself
maintenance: Checking and replacing
fuses
If any of the electrical components do not operate, a fuse may have
blown. If
this happens, check and replace the fuses as necessary.
1. Turn the power switch off.
2. Open the fuse box cover.
■ Engine compartment
Push the tab in and lift the lid off.
■ Driver's side instrument panel
R ...
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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