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

DATA LIST / ACTIVE TEST

DATA LIST

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.

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus:

(1) for Main Body: Body Electrical / Main Body / Data List.

(2) for Combination Meter: Body Electrical / Combination Meter / Data List.

(3) for Front Recognition Camera (Front Lighting Control): Body Electrical / Front Recognition Camera (Front Lighting Control) / Data List.

(4) for Front Recognition Camera: Chassis / Front Recognition Camera / Data List.

(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

Auto High Beam Main Switch

Automatic high beam switch signal

OFF or ON

OFF: Automatic high beam switch not pressed

ON: Automatic high beam switch pressed

w/ Automatic High Beam System

Dimmer SW

Dimmer switch high position signal

OFF or ON

OFF: Dimmer switch in low position

ON: Dimmer switch in high or high flash position

-

Passing Light SW

Dimmer switch high flash position (pass) signal

OFF or ON

OFF: Dimmer switch not in high flash position

ON: Dimmer switch in high flash position

-

Rear Fog Light SW

Fog light switch rear position signal

OFF or ON

OFF: Fog light switch off

ON: Fog light switch in rear position

Although the item is displayed on the Techstream, it is not applicable to this vehicle.

Front Fog Light SW

Fog light switch front position signal

OFF or ON

OFF: Fog light switch off

ON: Fog light switch in front position

Although the item is displayed on the Techstream, it is not applicable to this vehicle.

Auto Light SW

Light control switch AUTO position signal

OFF or ON

OFF: Light control switch not in AUTO position

ON: Light control switch in AUTO position

-

Head Light SW (Head)

Light control switch head position signal

OFF or ON

OFF: Light control switch not in head position

ON: Light control switch in head position

-

Head Light SW (Tail)

Light control switch tail position signal

OFF or ON

OFF: Light control switch not in tail or head position

ON: Light control switch in tail or head position

-

Insolation Amount of Solar Sensor RH

Solar sensor RH condition

0 to 51100 or SensorFail

Condition can be displayed

-

Insolation Amount of Solar Sensor LH

Solar sensor LH condition

0 to 51100 or SensorFail

Condition can be displayed

-

Light Sensor Illuminance

Light control sensor illuminance

0 to 8191 lx or SensorFail

Value is output according to ambient light level

The displayed value is "0" when no light is detected.

AUTO Light Status

Auto light control operation status

Not AUTO or AUTO

Not AUTO: Automatic light control not operating

AUTO: Automatic light control operating

-

AFS/AHS ECU High Beam Control

AFS (adaptive front-lighting system) or adaptive high beam system control function

Not Apply or Apply

Not Apply: AFS (adaptive front-lighting system) or adaptive high beam system control unavailable

Apply: AFS (adaptive front-lighting system) or adaptive high beam system control valid

Although the item is displayed on the Techstream, it is not applicable to this vehicle.

AFS/AHS ECU High Beam Light Status

AFS (adaptive front-lighting system) or adaptive high beam system high beam operation status

OFF or ON

OFF: AFS (adaptive front-lighting system) or adaptive high beam system high beam off

ON: AFS (adaptive front-lighting system) or adaptive high beam system high beam on

Although the item is displayed on the Techstream, it is not applicable to this vehicle.

Light Sensor Connection Status

Light control sensor connection status

OFF or ON

OFF: Automatic light control sensor has not been connected

ON: Automatic light control sensor connected or has been connected

-

Mirr-Foot-Lgt Approached/Exterior Light Approached

Outside handle foot light controlled by actuation area-linked function

OFF or ON

Customize setting displayed

-

Mirr-Foot-Lgt Unlocked/Exterior Light Unlocked

Outside handle foot light controlled by door unlock-linked function

OFF or ON

Customize setting displayed

-

Exterior Light (Door Open)

Door open control function of the outside handle foot light control

OFF or ON

Customize setting displayed

-

Mirror Foot Light Time/Exterior Light Time

Outside handle foot light lighting time

15 s, 7.5 s, 30 s or 0 s

Customize setting displayed

-

Exterior Light Control

Setting of the outside handle foot light control on/off

OFF or ON

Customize setting displayed

-

Headlight Lighting Function

ECU which controls the lighting system

Main Body or Lighting Sys ECU

Main Body: Lighting system controlled by main body ECU (multiplex network body ECU)

Lighting Sys ECU: Lighting system is controlled by No. 1 headlight ECU sub-assembly

-

Sensitivity

Sensitivity of the automatic light control system

Light2, Light1, Normal, Dark1 or Dark2

Customize setting displayed

-

DRL Function

Setting of the DRL function on/off

OFF or ON

Customize setting displayed

for vehicles with customize setting "DRL Function"

Headlight in Conjunction with Wiper

Wiper-linked low beam headlight control

OFF or ON

Customize setting displayed

-

Disp Ex ON Sen

Ambient brightness level required to dim display lights (combination meter, navigation display, etc.)

Light2, Light1, Normal, Dark1 or Dark2

Customize setting displayed

-

Disp Ex OFF Sen

Ambient brightness level required to cancel dimming display lights (combination meter, navigation display, etc.)

Light2, Light1, Normal, Dark1 or Dark2

Customize setting displayed

-

Light Auto OFF Delay

Light auto OFF delay

OFF, 30 s, 60 s or 90 s

Customize setting displayed

-

2 Steps Fade Out Control Function

Setting of the 2 steps fade out control function on/off

OFF or ON

Customize setting displayed

-

Auto H Beam STS0

Automatic high beam sensor current state

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • If the value of this item is not as specified, the automatic high beam sensor system may be malfunctioning.
  • w/ Automatic High Beam System

Auto H Beam STS1

Automatic high beam sensor state past 1

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Auto H Beam STS2

Automatic high beam sensor state past 2

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Auto H Beam STS3

Automatic high beam sensor state past 3

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Auto H Beam STS4

Automatic high beam sensor state past 4

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Auto H Beam STS5

Automatic high beam sensor state past 5

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Auto H Beam STS6

Automatic high beam sensor state past 6

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Auto H Beam STS7

Automatic high beam sensor state past 7

Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin or LIN Err

Condition can be displayed*

  • Although the item is displayed on the Techstream, it is not applicable to this vehicle.
  • w/ Automatic High Beam System

Light up Clearance Lights at Door Unlock Function

Setting of the welcome light illumination control customize setting

OFF or ON

Customize setting displayed

-

The Number of DTC

Number of trouble codes

0 to 255

Number of stored DTCs displayed

-

HINT:

*: The details of each value of the Range are as follows:

Display Value

Condition

Control Condition

Diagnostic Note

Undetec

Automatic high beam sensor being initialized

Control suspended (low beam headlights illuminated)

-

CAM NA

Automatic high beam sensor temporarily disabled due to high temperature, unclear image (due to dirt, fog, etc.), etc.

Control suspended (previous beam setting maintained)

-

No sens

No lights detected

High beam headlights illuminated

Only when vehicle speed within operation speed range

Hlight

Headlights of oncoming vehicle, etc. detected

Low beam headlights illuminated

Only when vehicle speed within operation speed range

Taillgt

Taillights preceding vehicle, etc. detected

Low beam headlights illuminated

Only when vehicle speed within operation speed range

Speed

No lights detected and vehicle speed below operation speed

Low beam headlights illuminated

-

Daytime

Bright light detected

Low beam headlights illuminated

-

Village

Streetlights, etc. detected

Low beam headlights illuminated

Only when vehicle speed within operation speed range

Delay

Changing between low beams and high beams

Changing between low beams and high beams

Only when vehicle speed within operation speed range

SAE Mod

Not applicable

-

-

Malfunc

Aim Lmt

Undefin

LIN Err

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Turn Signal Switch (Right)

Turn signal switch (right) signal

OFF or ON

OFF: Turn signal switch not in right turn position

ON: Turn signal switch in right turn position

-

Turn Signal Switch (Left)

Turn signal switch (left) signal

OFF or ON

OFF: Turn signal switch not in left turn position

ON: Turn signal switch in left turn position

-

Hazard Flasher Switch

Hazard warning signal switch signal

OFF or ON

OFF: Hazard warning signal switch off

ON: Hazard warning signal switch on

-

Turn Switch Signal (Full Turn)

Turn signal switch (full turn) signal

OFF or ON

OFF: Turn signal switch not in left or right turn position

ON: Turn signal switch in left or right turn position

-

Lane Change Flashing Times Setting

Condition of the lane change flashing times

OFF, 3, 4, 5, 6 or 7

Customize setting displayed

-

Body Electrical > Front Recognition Camera (Front Lighting Control) > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

Actual driven distance

0 to 16777215

Roughly the same as the actual driven distance

w/ Automatic High Beam System

Total Distance Traveled - Unit

Actual driven distance unit

km or mile

Displays the current actual driven distance unit

w/ Automatic High Beam System

AHB/AHS Information

Automatic high beam system or adaptive high beam system specification information

Unknown, AHB or AHS

Unknown: Specification not stored

AHB: w/ Automatic High Beam System

AHS: w/ Adaptive High Beam System

w/ Automatic High Beam System

Chassis > Front Recognition Camera > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Front Recognition Camera High Temperature 2

Forward recognition camera condition

Not High Temperature or High Temperature

Not High Temperature: 65°C (149°F) or lower

High Temperature: 65°C (149°F) or higher

  • When "High Temperature" is displayed, the automatic high beam system is temporarily suspended.
  • w/ Automatic High Beam 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:

(1) for Main Body: Body Electrical / Main Body / Active Test.

(2) for Combination Meter: Body Electrical / Combination Meter / 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

Daytime Running Light

Daytime running lights

OFF or ON

This Active Test can only be performed when the customization item DRL function is set to "ON" using the Techstream.

Exterior Light

Outside handle foot lights

OFF or ON

-

Taillight Relay

Taillight relay

OFF or ON

-

Headlight Relay

Low beam headlights

OFF or ON

-

Head Light Hi

High beam headlights

OFF or ON

-

Front Fog Light Relay

Front fog lights

OFF or ON

Although the item is displayed on the Techstream, it is not applicable to this vehicle.

Rear Fog Light Relay

Rear fog lights

OFF or ON

Although the item is displayed on the Techstream, it is not applicable to this vehicle.

Dimmer Signal

Dimmer signal

OFF or ON

State where circumference illumination is bright

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Automatic High Beam Indicator

Automatic high beam indicator light

OFF or ON

w/ Automatic High Beam System

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