Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Data List / Active Test

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Vehicle Interior / Lighting (int) / Lighting System / Data List / Active Test

DATA LIST / ACTIVE TEST

DATA LIST

NOTICE:

In the following table, 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.

(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 / Main Body or Back Door* / Data List.

  • *: w/ Power Back Door System

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

ACC SW

Engine switch on (ACC) signal

OFF or ON

ON: Engine switch on (ACC)

OFF: Engine switch off

-

IG SW

Engine switch on (IG) signal

OFF or ON

ON: Engine switch on (IG)

OFF: Engine switch off

-

RR Door Courtesy SW

Rear door courtesy light switch assembly RH signal

OFF or ON

ON: Rear door RH open

OFF: Rear door RH closed

-

RL Door Courtesy SW

Rear door courtesy light switch assembly LH signal

OFF or ON

ON: Rear door LH open

OFF: Rear door LH closed

-

Back Door Courtesy SW

Back door courtesy light switch signal

OFF or ON

ON: Back door open

OFF: Back door closed

For vehicles with power back door system, this item is not related to back door condition.

FR Door Lock Pos

Front door RH unlock detection switch signal

LOCK or UNLOCK

LOCK: Front door RH locked

UNLOCK: Front door RH unlocked

-

FR Door Courtesy SW

Front door courtesy light switch assembly RH signal

OFF or ON

ON: Front oor RH open

OFF: Front oor RH closed

-

FL Door Lock Pos

Front oor LH unlock detection switch signal

LOCK or UNLOCK

LOCK: Front oor LH locked

UNLOCK: Front oor LH unlocked

-

FL Door Courtesy SW

Front door courtesy light switch assembly LH signal

OFF or ON

ON: Front oor LH open

OFF: Front oor LH closed

-

Dome Light DOOR SW

Door switch signal

OFF or ON

ON: Door switch pressed

OFF: Door switch not pressed

-

Dome Light SW

Front dome light switch signal

OFF or ON

ON: Front dome light switch ON

OFF: Front dome light switch OFF

-

RR-Door Lock Pos SW

Rear door RH unlock detection switch signal

OFF or ON

ON: Rear door RH unlocked

OFF: Rear door RH locked

-

RL-Door Lock Pos SW

Rear door LH unlock detection switch signal

OFF or ON

ON: Rear door LH unlocked

OFF: Rear door LH locked

-

Interior Light Control

Operation of the illuminated entry system

OFF or ON

Customized value is displayed

Displayed only when All Data is selected.

I/L ON W/Door Key Unlock

Function that lights up the interior lights when the doors are unlocked

OFF or ON

Customized value is displayed

Displayed only when All Data is selected.

Lighting Time

Lighting time of the delay control function (illuminated entry system)

15s, 7.5s or 30s

Customized value is displayed

Displayed only when All Data is selected.

Room Light when Aprchd

Function that lights up the interior lights when a key enters any actuation area

OFF or ON

Customized value is displayed

Displayed only when All Data is selected.

I/L when ACC OFF

Function that lights up the interior lights when the engine switch is turned from on (ACC or IG) to off

OFF or ON

Customized value is displayed

Displayed only when All Data is selected.

Light Control

Function that lights up the ambient lights (while driving)

OFF or ON

Customized value is displayed

Displayed only when All Data is selected.

Interior Illumination Light

Function that lights up the ambient lights (always)

OFF or ON

Customized value is displayed

Displayed only when All Data is selected.
Body Electrical > Back Door > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Courtesy SW

Back door courtesy switch signal*

OFF or ON

ON: Back door open

OFF: Back door closed

-
  • *: w/ Power Back Door System

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(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 / (desired system) / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Main Body > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Illuminated Entry System

Turns on the lights that are controlled by the illuminated entry system*1

OFF or ON

Perform the Active Test with door switch in the map light assembly turned on.

Fr Foot Light

Footwell light and instrument panel box light

ON or OFF

-

Relay for Interior Light Auto Cut Function

DOME CUT relay

ON or OFF
  • ON: DOME CUT relay off (interior lights turn off)
  • OFF: DOME CUT relay on (interior lights turn on)

Interior Illumination Light1

Instrument panel ambient illumination light

OFF or ON

Preconditions for using the Active Test to check dimmer controlled illumination:

  • Engine switch on.
  • Shift lever is in any position other than P.

Interior Illumination Light2

Door ambient illumination light

OFF or ON

Preconditions for using the Active Test to check dimmer controlled illumination:

  • Engine switch on.
  • Shift lever is in any position other than P.

*1: Refer to Description for the lights that are controlled by the illuminated entry system.

Click here

Body Electrical > Smart Access > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Power/Engine SW Light

Engine switch illumination

OFF or ON

When performing this Active Test, make sure the following condition is met:

The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the engine switch is on (ACC) or on (IG), or the engine is running.
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