Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

DATA LIST

(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 / Central Gateway / Data List.

Body Electrical > Central Gateway > Data List

Tester Display

IG2 SW

IG1 SW

ACC SW

+B Voltage

(e) According to the display on the Techstream, read the Data List.

Body Electrical > Central Gateway > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

IG2 SW

Engine switch ON (IG) signal (IG2 terminal)

OFF or ON

OFF: Engine switch ACC or off

ON: Engine switch ON (IG)

-

IG1 SW

Engine switch ON (IG) signal (IG1 terminal)

OFF or ON

OFF: Engine switch ACC or off

ON: Engine switch ON (IG)

-

ACC SW

Engine switch ACC signal (ACC terminal)

OFF or ON

OFF: Engine switch off

ON: Engine switch ACC or ON (IG)

-

+B Voltage

Battery voltage (BATT terminal)

Over 8 V or Under 8 V

Over 8 V: Battery voltage 8 V or higher

Under 8 V: Battery voltage below 8 V

-

    How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT PRECAUTIONS WHEN TROUBLESHOOTING NOTICE: Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with ...

    Diagnosis System
    DIAGNOSIS SYSTEM CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION (a) The systems (ECUs and sensors) that use CAN communication vary depending on the vehicle and optional equi ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Theft Deterrent System: Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE THEFT DETERRENT SYSTEM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. When troubleshooting a function, first make sure that the fu ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sliding Roof Housing (for Panoramic Moon Roof): 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 sliding roof glass sub-assembly, sliding roof housing panel, sliding roof drive gear assembly, sliding r ...

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

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

    © 2025 Copyright www.lexusrx.net
    0.0164