Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK 4WD ECU ASSEMBLY

(a) Measure the voltage and resistance of the connector.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

R10-10 (4WDS) - R10-4 (GND)

P - W-B

AWD lock mode switch signal

Engine switch on (IG)

AWD lock mode switch released → pressed and held

11 to 14 V → Below 1 V

R10-6 (CANH) - R10-5 (CANL)

B - W

HIGH-level CAN bus wire - LOW-level CAN bus wire

Cable disconnected from negative (-) battery terminal

54 to 69 Ω

R10-4 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

R10-3 (IG1) - R10-4 (GND)

B - W-B

Power source voltage

Engine switch on (IG)

11 to 14 V

R10-2 (SLC+) - R10-1 (SLC-)

L - B

4WD linear solenoid signal

Shift lever in D, engine idling

Pulse generation (See waveform 1)

If the result is not as specified, the 4WD ECU assembly may have a malfunction.

(b) Using an oscilloscope, check the waveform 1.

Waveform 1 (Reference)

Item

Content

Terminal No. (Symbol)

R10-2 (SLC+) - R10-1 (SLC-)

Tester Range

2 V/DIV., 1 msec./DIV.

Condition

Shift lever in D, engine idling

    Diagnosis System
    DIAGNOSIS SYSTEM DESCRIPTION Dynamic torque control AWD system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be ...

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Check for DTCs. (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Read the DTCs following the prompts on the T ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Transmission Control Cable: Components
    COMPONENTS ILLUSTRATION *1 AIR CLEANER CAP WITH AIR CLEANER HOSE *2 AIR CLEANER CASE SUB-ASSEMBLY *3 AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY *4 INLET AIR CLEANER ASSEMBLY *5 BATTERY *6 COOL AIR INTAKE DUCT SEAL *7 BATTERY TRAY *8 BATTERY CLAMP SUB-ASSEMBLY ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Navigation Processor Malfunction (B15AD)
    DESCRIPTION This DTC is stored when a malfunction occurs in the navigation ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B15AD Navigation Processor Malfunction When either condition below is met: A short to ground, short to +B or open occurs in the gyro signal ...

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

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

    © 2025 Copyright www.lexusrx.net
    0.0239