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

TERMINALS OF ECU

CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY

NOTICE:

  • DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
  • Do not apply excessive force to the forward recognition camera connector.

(a) Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A70-1 (SGND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

A70-8 (IGB) - A70-1 (SGND)

G - W-B

Power source

Engine switch on (IG)

11 to 14 V

Engine switch off

Below 1 V

(b) Check for pulses according to the value(s) in the table below.

HINT:

If the waveform is not similar to that shown in the illustration, a malfunction of a CAN bus line, terminating resistor, or the millimeter wave radar sensor assembly is suspected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A70-2 (CA2L) - A70-1 (SGND)

V - W-B

CAN communication signal

Engine switch on (IG)

Pulse generation

(See waveform 2)

A70-3 (CA2H) - A70-1 (SGND)

BR - W-B

CAN communication signal

Engine switch on (IG)

Pulse generation

(See waveform 1)

A70-5 (CA1P) - A70-1 (SGND)

L - W-B

CAN communication signal

Engine switch on (IG)

Pulse generation

(See waveform 1)

A70-6 (CA1N) - A70-1 (SGND)

GR - W-B

CAN communication signal

Engine switch on (IG)

Pulse generation

(See waveform 2)

(1) Waveform 1

Item

Content

Tester Connection

  • Between A70-3 (CA2H) and A70-1 (SGND)
  • Between A70-5 (CA1P) and A70-1 (SGND)

Tool Setting

1 V/DIV., 10 μs./DIV.

Condition

Engine switch on (IG)

HINT:

The waveform varies depending on the CAN communication signal.

(2) Waveform 2

Item

Content

Tester Connection

  • Between A70-2 (CA2L) and A70-1 (SGND)
  • Between A70-6 (CA1N) and A70-1 (SGND)

Tool Setting

1 V/DIV., 10 μs./DIV.

Condition

Engine switch on (IG)

HINT:

The waveform varies depending on the CAN communication signal.

    Problem Symptoms Table
    PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of ...

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK FOR DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Front Radar Sen ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Steering Gear: Installation
    INSTALLATION PROCEDURE 1. INSTALL TIE ROD ASSEMBLY LH (a) Install the lock nut and tie rod assembly LH to the steering gear assembly until the matchmarks are aligned. HINT: After adjusting the toe-in, tighten the lock nut. *a Matchmark 2. INSTALL TIE ROD ASSEMBLY RH HINT: ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Tilt And Power Telescopic Steering Column System: How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding. NEXT 3. ...

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

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

    © 2025 Copyright www.lexusrx.net
    0.0145