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

DATA LIST / ACTIVE TEST

DATA LIST

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.

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.

(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 / Mirror L / Data List.

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

Body Electrical > Mirror L > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Seat Memory Switch1

M1 switch

ON or OFF

ON: M1 switch on

OFF: M1 switch off

-

Seat Memory Switch2

M2 switch

ON or OFF

ON: M2 switch on

OFF: M2 switch off

-

Seat Memory Switch3

M3 switch

ON or OFF

ON: M3 switch on

OFF: M3 switch off

-

Seat Memory Set SW

SET switch

ON or OFF

ON: SET switch on

OFF: SET switch off

-

+B Voltage Input Value

Power supply for outer mirror control ECU assembly

MIN: 0, MAX: 25.5

Within range from 11 to 14 V

-

(f) Enter the following menus: Body Electrical / Driver Seat / Data List.

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

Body Electrical > Driver Seat > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Reclining Rear

Reclining switch signal (Rearward)

ON or OFF

ON: Reclining switch (Rearward) on

OFF: Reclining switch (Rearward) off

-

Reclining Front

Reclining switch signal (Forward)

ON or OFF

ON: Reclining switch (Forward) on

OFF: Reclining switch (Forward) off

-

Front Vertical Down

Front vertical switch signal (Downward)

ON or OFF

ON: Front vertical switch (Downward) on

OFF: Front vertical switch (Downward) off

-

Front Vertical Up

Front vertical switch signal (Upward)

ON or OFF

ON: Front vertical switch (Upward) on

OFF: Front vertical switch (Upward) off

-

Lifter Switch Down

Lifter switch signal (Downward)

ON or OFF

ON: Lifter switch (Downward) on

OFF: Lifter switch (Downward) off

-

Lifter Switch Up

Lifter switch signal (Upward)

ON or OFF

ON: Lifter switch (Upward) on

OFF: Lifter switch (Upward) off

-

Slide Rear

Slide switch signal (Rearward)

ON or OFF

ON: Slide switch (Rearward) on

OFF: Slide switch (Rearward) off

-

Slide Front

Slide switch signal (Forward)

ON or OFF

ON: Slide switch (Forward) on

OFF: Slide switch (Forward) off

-

Seat Memory No1

Seat position memorized with M1 switch

Mem or Not Mem

Mem: Memorized

Not Mem: Not memorized

-

Seat Memory No2

Seat position memorized with M2 switch

Mem or Not Mem

Mem: Memorized

Not Mem: Not memorized

-

Seat Memory No3

Seat position memorized with M3 switch

Mem or Not Mem

Mem: Memorized

Not Mem: Not memorized

-

Ignition Switch

Communication state of engine switch signal

ON or OFF

ON: Engine switch on (IG)

OFF: Engine switch off or on (ACC)

-

P Switch

Park state signal

ON or OFF

ON: Shift lever in P

OFF: Shift lever in a position other than P

-

Parking Brake SW

Parking brake switch status

ON or OFF

ON: Parking brake applied

OFF: Parking brake released

-

Vehicle Speed

Vehicle speed data

Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

Actual vehicle speed

-

Power Voltage

Power supply for position control ECU and switch assembly LH

Min: 0.95 V, Max: 20.84 V

Within range from 11 to 14 V

-

Slide Position

Seat sliding position

Min: 0, Max: 65535

Within range from 0 to 65535

-

Reclining Position

Seat reclining position

Min: 0, Max: 65535

Within range from 0 to 65535

-

Front Vertical Position

Seat front vertical position

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Position

Seat lifter position

Min: 0, Max: 65535

Within range from 0 to 65535

-

Slide Pos Mem No1

Seat slide position memorized with M1 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Reclining Pos Mem No1

Seat reclining position memorized with M1 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Frnt Vrtcl Pos Mem No1

Front vertical position memorized with M1 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Pos Mem No1

Lifter position memorized with M1 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Slide Pos Mem No2

Seat slide position memorized with M2 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Reclining Pos Mem No2

Seat reclining position memorized with M2 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Frnt Vrtcl Pos Mem No2

Front vertical position memorized with M2 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Pos Mem No2

Lifter position memorized with M2 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Slide Pos Mem No3

Seat slide position memorized with M3 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Reclining Pos Mem No3

Seat reclining position memorized with M3 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Frnt Vrtcl Pos Mem No3

Front vertical position memorized with M3 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Pos Mem No3

Lifter position memorized with M3 switch

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Initialize Flag

Seat lifter limit position memory

ON or OFF

ON: Memorized

OFF: Not memorized

-

Front Vertical Init Flag

Seat front vertical limit position memory

ON or OFF

ON: Memorized

OFF: Not memorized

-

Reclining Position Init Flg

Seat reclining limit position memory

ON or OFF

ON: Memorized

OFF: Not memorized

-

Slide Position Init Flag

Seat slide limit position memory

ON or OFF

ON: Memorized

OFF: Not memorized

-

Slide Position Front Limit

Seat slide limit position (front)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Slide Position Rear Limit

Seat slide limit position (rear)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Reclining Position Front Limit

Seat reclining limit position (front)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Reclining Position Rear Limit

Seat reclining limit position (rear)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Front Vertical UP Limit

Seat front vertical limit position (up)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Front Vertical Down Limit

Seat front vertical limit position (down)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Position UP Limit

Seat lifter limit position (up)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Lifter Position Down Limit

Seat lifter limit position (down)

Min: 0, Max: 65535

Within range from 0 to 65535

-

Memory Button Buzzer Request

Driver seat buzzer request display

OFF, MOVE, REGISTRY, CANCEL, REG NG, REG WAIT

OFF: Buzzer does not sound

MOVE: Request to sound buzzer when starting memory replay

REGISTRY: Request to sound buzzer when starting memory registration

CANCEL: Request to sound buzzer when canceling memory call registration

REG NG: Request to sound buzzer when memory call registration not possible

REG WAIT: Request to sound buzzer when starting memory call cabin scan

-

Driver Seat Request Command

Driver seat operation request received

OFF, MEMORY, MEM MOV, MEM SOD, RET MOV, AWY MOV, AWY SOD, MEM AWY or MEM RET

OFF: No instruction

MEMORY: Request to memorize

MEM MOV: Request to recall memory

MEM SOD: Request to replay

RET MOV: Request to return

AWY MOV: Request to move away

AWY SOD: Request to recall away position memory

MEM AWY: Request to recall memorized position of seatback

MEM RET: Request to restore seatback to memorized position

-

Driver Seat POS REQ

Seat memory switch LH operation value

OFF, MEM1, MEM2, MEM3, DRV1, DRV2 or DRV3

OFF: No operation

MEM1: M1 switch operation status

MEM2: M2 switch operation status

MEM3: M3 switch operation status

DRV1: Other 1 operation status

DRV2: Other 2 operation status

DRV3: Other 3 operation status

-

Away Move Range Scale

Seat travel distance for power easy access system

NONE, SMALL, STANDRD or LONG

NONE: Seat travel distance none

SMALL: Seat travel distance short

STANDRD: Seat travel distance normal

LONG: Seat travel distance long

-

Return Move

Return function

NOT AVL or AVAIL

NOT AVL: Not available

AVAIL: Available

-

Return & Away Function

Return & away function

NOT AVL or AVAIL

NOT AVL: Not available

AVAIL: Available

-

Driver Seat Buckle SW

Driver seat belt buckle switch

ON or OFF

ON: Driver seat belt fastened

OFF: Driver seat belt unfastened

-

Return Position

Return position

Min: 0, Max: 65535

Within range from 0 to 65535

-

Shift SW Position

Park state signal

Shift P or Shift Other

Shift P: Shift lever in P

Shift Other: Shift lever in a position other than P

-

Number of Trouble Codes

Number of trouble codes

Min.: 0 or Max.: 255

Number of DTCs will be displayed

-

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

(h) Enter the following menus: Body Electrical / Main Body / Data List.

(i) 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

FL Door Courtesy SW

Front door courtesy light switch assembly (driver door) signal

ON or OFF

ON: Driver door open

OFF: Driver door closed

-

Seat Move Distance

Setting of customize function "Seat Move Distance"

OFF, Little or Standard

Customize setting displayed

-

Seat position/Tilt & Telesco memory recall setting

Setting of customize function "Seat position/Tilt & Telesco memory recall setting"

D Door or Any Door

Customize setting displayed

-

Mem SW No. w/KeyID1

Memory switch linked with key ID1

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID1

MEM SW1: M1 switch linked with key ID1

MEM SW2: M2 switch linked with key ID1

MEM SW3: M3 switch linked with key ID1

-

Mem SW No. w/KeyID2

Memory switch linked with key ID2

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID2

MEM SW1: M1 switch linked with key ID2

MEM SW2: M2 switch linked with key ID2

MEM SW3: M3 switch linked with key ID2

-

Mem SW No. w/KeyID3

Memory switch linked with key ID3

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID3

MEM SW1: M1 switch linked with key ID3

MEM SW2: M2 switch linked with key ID3

MEM SW3: M3 switch linked with key ID3

-

Mem SW No. w/KeyID4

Memory switch linked with key ID4

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID4

MEM SW1: M1 switch linked with key ID4

MEM SW2: M2 switch linked with key ID4

MEM SW3: M3 switch linked with key ID4

-

Mem SW No. w/KeyID5

Memory switch linked with key ID5

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID5

MEM SW1: M1 switch linked with key ID5

MEM SW2: M2 switch linked with key ID5

MEM SW3: M3 switch linked with key ID5

-

Mem SW No. w/KeyID6

Memory switch linked with key ID6

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID6

MEM SW1: M1 switch linked with key ID6

MEM SW2: M2 switch linked with key ID6

MEM SW3: M3 switch linked with key ID6

-

Mem SW No. w/KeyID7

Memory switch linked with key ID7

NONE, MEM SW1, MEM SW2 or MEM SW3

NONE: No switches linked with key ID7

MEM SW1: M1 switch linked with key ID7

MEM SW2: M2 switch linked with key ID7

MEM SW3: M3 switch linked with key ID7

-

Driver Seat Memory1

Seat position memorized with M1 switch

ON or OFF

ON: Memorized

OFF: Not memorized

-

Driver Seat Memory2

Seat position memorized with M2 switch

ON or OFF

ON: Memorized

OFF: Not memorized

-

Driver Seat Memory3

Seat position memorized with M3 switch

ON or OFF

ON: Memorized

OFF: Not memorized

-

D Seat Configuration

Position control ECU and switch assembly (driver seat) status

NONE, Not RTN or Return

NONE: Position control ECU and switch assembly LH not connected

Not RTN: Position control ECU and switch assembly LH connected (Not including power seat power easy access system function)

Return: Position control ECU and switch assembly LH connected (Including power seat power easy access system function)

-

Communication P-Seat

Connection status between position control ECU and switch assembly RH and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Communication stopped

OK: Normal communication

-

Communication D-Seat

Connection status between position control ECU and switch assembly LH and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Communication stopped

OK: Normal communication

-

(j) Enter the following menus: Body Electrical / Master Switch / Data List.

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

Body Electrical > Master Switch > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Door Lock Switch Status

Door control switch (multiplex network master switch assembly) lock signal

ON or OFF

ON: Lock side of door control switch (multiplex network master switch assembly) pushed

OFF: Lock side of door control switch (multiplex network master switch assembly) not pushed

-

Door Unlock Switch Status

Door control switch (multiplex network master switch assembly) unlock signal

ON or OFF

ON: Unlock side of door control switch (multiplex network master switch assembly) pushed

OFF: Unlock side of door control switch (multiplex network master switch assembly) not pushed

-

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 / Driver Seat / Active Test.

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

Body Electrical > Driver Seat > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Seat Reclining

Seat reclining operation

OFF/Rear/Front

-

Front Vertical Operation

Seat front vertical operation

OFF/Down/Up

-

Lifter Operation

Seat lifter operation

OFF/Down/Up

-

Seat Slide Operation

Seat slide operation

OFF/Rear/Front

-

Buzzer

Buzzer operation

OFF/ON

-

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