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

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Vehicle Exterior / Mirror (ext) / Power Mirror Control System (w/ Memory) / 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, Mirror R, Main Body or Master Switch / 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

Seat memory switch M1 switch signal

OFF or ON

OFF: Seat memory switch M1 switch off

ON: Seat memory switch M1 switch on

-

Seat Memory Switch2

Seat memory switch M2 switch signal

OFF or ON

OFF: Seat memory switch M2 switch off

ON: Seat memory switch M2 switch on

-

Seat Memory Switch3

Seat memory switch M3 switch signal

OFF or ON

OFF: Seat memory switch M3 switch off

ON: Seat memory switch M3 switch on

-

Seat Memory Set SW

Seat memory switch SET switch signal

OFF or ON

OFF: Seat memory switch SET switch off

ON: Seat memory switch SET switch on

-

Mirror Memory No.1

Mirror position memorized in memory switch M1

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.2

Mirror position memorized in memory switch M2

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.3

Mirror position memorized in memory switch M3

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.4

Mirror position memorized in memory switch M4*

OFF or ON

OFF: Not memorized

ON: Memorized

Not applicable

Mirror Memory No.5

Mirror position memorized in memory switch M5*

OFF or ON

OFF: Not memorized

ON: Memorized

Not applicable

Mirror Memory No.6

Mirror position memorized in memory switch M6*

OFF or ON

OFF: Not memorized

ON: Memorized

Not applicable

Mirror Memory(Rev) No.1

Mirror reverse shift-linked position No. 1 memorized

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory(Rev) No.2

Mirror reverse shift-linked position No. 2 memorized

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory(Rev) No.3

Mirror reverse shift-linked position No. 3 memorized

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Vertical Sensor Vol

Vertical mirror position

MIN: 0, MAX: 5 V

0 to 5 V

-

Mirror Horizontal Sensor Vol

Horizontal mirror position

MIN: 0, MAX: 5 V

0 to 5 V

-

+B Voltage Input Value

Power supply for outer mirror control ECU assembly

MIN: 0 V, MAX: 25.5 V

11 to 14 V

-

# Codes

Number of trouble codes

0 to 255

Number of stored DTCs displayed

-
  • *: Although the item is displayed on the Techstream, it is not applicable to this vehicle.
Body Electrical > Mirror R > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Seat Memory Switch1

Seat memory switch M1 switch signal

OFF or ON

OFF: Seat memory switch M1 switch off

ON: Seat memory switch M1 switch on

-

Seat Memory Switch2

Seat memory switch M2 switch signal

OFF or ON

OFF: Seat memory switch M2 switch off

ON: Seat memory switch M2 switch on

-

Seat Memory Switch3

Seat memory switch M3 switch signal

OFF or ON

OFF: Seat memory switch M3 switch off

ON: Seat memory switch M3 switch on

-

Seat Memory Set SW

Seat memory switch SET switch signal

OFF or ON

OFF: Seat memory switch SET switch off

ON: Seat memory switch SET switch on

-

Mirror Memory No.1

Mirror position memorized in memory switch M1

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.2

Mirror position memorized in memory switch M2

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.3

Mirror position memorized in memory switch M3

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.4

Mirror position memorized in memory switch M4*

OFF or ON

OFF: Not memorized

ON: Memorized

Not applicable

Mirror Memory No.5

Mirror position memorized in memory switch M5*

OFF or ON

OFF: Not memorized

ON: Memorized

Not applicable

Mirror Memory No.6

Mirror position memorized in memory switch M6*

OFF or ON

OFF: Not memorized

ON: Memorized

Not applicable

Mirror Memory(Rev) No.1

Mirror reverse shift-linked position No. 1 memorized

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory(Rev) No.2

Mirror reverse shift-linked position No. 2 memorized

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory(Rev) No.3

Mirror reverse shift-linked position No. 3 memorized

OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Vertical Sensor Vol

Vertical mirror position

MIN: 0, MAX: 5 V

0 to 5 V

-

Mirror Horizontal Sensor Vol

Horizontal mirror position

MIN: 0, MAX: 5 V

0 to 5 V

-

+B Voltage Input Value

Power supply for outer mirror control ECU assembly

MIN: 0 V, MAX: 25.5 V

11 to 14 V

-

# Codes

Number of trouble codes

0 to 255

Number of stored DTCs displayed

-
  • *: Although the item is displayed on the Techstream, it is not applicable to this vehicle.
Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Mem SW No. w/KeyID1

Switch linked with key ID1

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID1

MEM SW1: M1 linked with key ID1

MEM SW2: M2 linked with key ID1

MEM SW3: M3 linked with key ID1

-

Mem SW No. w/KeyID2

Switch linked with key ID2

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID2

MEM SW1: M1 linked with key ID2

MEM SW2: M2 linked with key ID2

MEM SW3: M3 linked with key ID2

-

Mem SW No. w/KeyID3

Switch linked with key ID3

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID3

MEM SW1: M1 linked with key ID3

MEM SW2: M2 linked with key ID3

MEM SW3: M3 linked with key ID3

-

Mem SW No. w/KeyID4

Switch linked with key ID4

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID4

MEM SW1: M1 linked with key ID4

MEM SW2: M2 linked with key ID4

MEM SW3: M3 linked with key ID4

-

Mem SW No. w/KeyID5

Switch linked with key ID5

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID5

MEM SW1: M1 linked with key ID5

MEM SW2: M2 linked with key ID5

MEM SW3: M3 linked with key ID5

-

Mem SW No. w/KeyID6

Switch linked with key ID6

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID6

MEM SW1: M1 linked with key ID6

MEM SW2: M2 linked with key ID6

MEM SW3: M3 linked with key ID6

-

Mem SW No. w/KeyID7

Switch linked with key ID7

NONE, MEM SW1, MEM SW2, or MEM SW3

NONE: No switches linked with key ID7

MEM SW1: M1 linked with key ID7

MEM SW2: M2 linked with key ID7

MEM SW3: M3 linked with key ID7

-
Body Electrical > Master Switch > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Mirror Selection SW (L)

Mirror select switch signal for LH mirror

OFF or ON

OFF: Mirror select switch off

ON: Mirror select switch L switch on

-

Mirror Selection SW (R)

Mirror select switch signal for RH mirror

OFF or ON

OFF: Mirror select switch off

ON: Mirror select switch R switch on

-

Mirror Position SW (L)

Mirror adjust switch signal (Left)

OFF or ON

OFF: Mirror adjust switch not pressed left

ON: Mirror adjust switch pressed left

Check with the mirror select switch L or R switch on

Mirror Position SW (R)

Mirror adjust switch signal (Right)

OFF or ON

OFF: Mirror adjust switch not pressed right

ON: Mirror adjust switch pressed right

Check with the mirror select switch L or R switch on

Mirror Position SW (Up)

Mirror adjust switch signal (Up)

OFF or ON

OFF: Mirror adjust switch not pressed up

ON: Mirror adjust switch pressed up

Check with the mirror select switch L or R switch on

Mirror Position SW (Dwn)

Mirror adjust switch signal (Down)

OFF or ON

OFF: Mirror adjust switch not pressed down

ON: Mirror adjust switch pressed down

Check with the mirror select switch L or R switch on

Outer Mirror Fold SW

Retractable outer mirror switch signal

OFF or ON

OFF: Retractable outer mirror switch off

ON: Retractable outer mirror switch on

-

Auto Mirror SW

Auto retractable outer mirror switch signal

OFF or ON

OFF: Auto retractable outer mirror switch off

ON: Auto retractable outer mirror switch on

-

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 / Mirror L, Mirror R or Air Conditioner / Active Test.

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

Body Electrical > Mirror L > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Mirror Up/Down

Mirror vertical operation

OFF, Down or Up
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test tilts the mirror up or down.
  • This operation can be confirmed by watching the mirror move in the desired direction.

Mirror Right/Left

Mirror horizontal operation

OFF, Right or Left
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test tilts the mirror right or left.
  • This operation can be confirmed by watching the mirror move in the desired direction.

Mirror Fold/Return

Mirror retract operation

OFF, Return or Fold
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test activates the Fold / Return.
  • This operation can be confirmed by watching the mirror move in the desired direction.

Mirror Heater

Mirror heater operation

OFF or ON
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test turns the mirror heater on or off.
  • Mirror heater operation can be confirmed by touch.
Body Electrical > Mirror R > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Mirror Up/Down

Mirror vertical operation

OFF, Down or Up
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test tilts the mirror up or down.
  • This operation can be confirmed by watching the mirror move in the desired direction.

Mirror Right/Left

Mirror horizontal operation

OFF, Right or Left
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test tilts the mirror right or left.
  • This operation can be confirmed by watching the mirror move in the desired direction.

Mirror Fold/Return

Mirror retract operation

OFF, Return or Fold
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test activates the Fold / Return.
  • This operation can be confirmed by watching the mirror move in the desired direction.

Mirror Heater

Mirror heater operation

OFF or ON
  • Operate with engine switch on (IG) and the vehicle stopped.
  • This test turns the mirror heater on or off.
  • Mirror heater operation can be confirmed by touch.
Body Electrical > Air Conditioner > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Defogger Relay (Rear)

Mirror Heater

OFF or ON

-
    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK 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 / Mirror L or Mirror ...

    Diagnostic Trouble Code Chart
    DIAGNOSTIC TROUBLE CODE CHART Power Mirror Control System (w/ Memory) DTC No. Detection Item Link U0142 Lost Communication with Main Body ECU ...

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