Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECU

DESCRIPTION

This circuit includes the navigation ECU and radio receiver assembly.

WIRING DIAGRAM

PROCEDURE

1.

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

J149-7 (SUP) - J153-21 (SUP)

Always

Below 1 Ω

J149-7 (SUP) or J153-21 (SUP) - 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

    Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU
    DESCRIPTION This circuit includes the navigation ECU and radio receiver assembly. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU) (a) Disco ...

    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 radio receive ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Smart Access System With Push-button Start (for Entry Function): Open in Inside Luggage Compartment Electrical Key Oscillator Circuit (B27A7)
    DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the No. 3 indoor electrical key antenna assembly (inside luggage compartment). For the No. 3 indoor electrical key antenna assembly (inside luggage compartment) to detect when the electr ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Axle And Differential: Rear Axle Hub Bolt
    ComponentsCOMPONENTS ILLUSTRATION *1 REAR AXLE HUB BOLT *2 REAR DISC *3 REAR DISC BRAKE CALIPER ASSEMBLY *4 REAR FLEXIBLE HOSE *5 NO. 2 PARKING BRAKE WIRE ASSEMBLY - - Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/s ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.016