Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Freeze Frame Data

FREEZE FRAME DATA

FREEZE FRAME DATA

(a) Using the Techstream, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output.

CHECK FREEZE FRAME DATA WHEN DTC WAS STORED

HINT:

  • Freeze frame data is stored when a DTC is output.
  • Once freeze frame data is stored when a DTC is output, it is not updated or cleared until the DTC is cleared.

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3 and turn the engine switch on (IG).

(c) Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

Chassis > Brake/EPB > Trouble Codes

(d) Select a DTC to display the freeze frame data.

(e) Check the freeze frame data for the output DTC.

Chassis > Brake/EPB

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled - Unit

Total Distance Traveled unit

km / mile

-

-

Total Distance Traveled

Total distance traveled

Min.: 0

Max.: 16777215

-

-

IG1 Voltage Value

IG1 terminal voltage value (value detected by ECU)

Min.: 0.0 V

Max.: 25.5 V

Engine switch on (IG): 11.0 to 14.0 V

Changes in proportion to battery voltage

BS1 Voltage Value

+BS terminal voltage value (value detected by ECU)

Min.: 0.0 V

Max.: 25.5 V

Engine switch on (IG): 11.0 to 14.0 V

Changes in proportion to battery voltage

HINT:

This is the voltage detected at terminal +BS (which supplies power to each solenoid) of the skid control ECU (brake actuator assembly)

Motor Power Supply Voltage

BM terminal voltage value (value detected by ECU)

Min.: 0.0 V

Max.: 25.5 V

Engine switch on (IG): 11.0 to 14.0 V

Changes in proportion to battery voltage

HINT:

This is the voltage detected at terminal BM (which supplies power to the ABS motor) of the skid control ECU (brake actuator assembly)

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0.0 km/h (0.0 mph)

Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0.0 km/h (0.0 mph)

Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0.0 km/h (0.0 mph)

Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0.0 km/h (0.0 mph)

Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Master Cylinder Sensor 1

Master cylinder pressure sensor pressure (value detected by ECU)

Min.: -1.00 MPa

Max.: 23.99 MPa

Brake pedal released: -1.00 to 0.00 MPa

Reading increases when brake pedal is depressed

Master Cylinder Sensor Temperature

Master cylinder pressure sensor temperature

Min.: -80°C

Max.: 175°C

Displays temperature master cylinder pressure sensor

-

M/C Sensor Grade

Master cylinder pressure sensor change (value detected by ECU)

Min.: -30 MPa/s

Max.: 225 MPa/s

Brake pedal released or pedal held at constant position: 0 MPa/s

When brake pedal is being operated: Changes in proportion with the pedal movement speed

Lateral G

Lateral G

Min.: -25.105 m/s2

Max.: 24.908 m/s2

Turning right: -25.105 to 0.000 m/s2

Turning left: 0.000 to 24.908 m/s2

During turning: Changes in proportion with lateral acceleration

Forward and Rearward G

Forward and rearward G

Min.: -25.105 m/s2

Max.: 24.908 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During acceleration/deceleration: Changes in proportion with acceleration

Yaw Rate Sensor Value

Yaw rate sensor

Min.: -128°/s

Max.: 127°/s

Vehicle stopped: 0°/s

Turning right: -128 to 0°/s

Turning left: 0 to 127°/s

-

Steering Angle Value

Steering sensor

Min.: -3276.8°

Max.: 3276.7°

Turning left: 0.0 to 3276.7°

Turning right: -3276.8 to 0.0°

-

MT Voltage Value

ABS motor drive voltage value

Min.: 0.0 V

Max.: 25.5 V

Engine switch on (IG): 11.0 to 14.0 V

Changes in proportion to battery voltage

HINT:

This is the voltage output (which supplies power to the ABS motor) from the skid control ECU (brake actuator assembly) to the ABS motor relay

Solenoid Power Supply Voltage

Solenoid power supply voltage value

Min.: 0.0 V

Max.: 25.5 V

Engine switch on (IG): 11.0 to 14.0 V

Changes in proportion to battery voltage

HINT:

This is the voltage output (which supplies power to each solenoid) from the skid control ECU (brake actuator assembly) to the ABS solenoid relay

Engine Revolutions

Engine speed

Min.: 0 rpm

Max.: 65535 rpm

Engine stopped: 0 rpm

When engine speed is constant: No large fluctuations

Accelerator Opening Angle %

Percentage of accelerator pedal opening angle

Min.: 0.0%

Max.: 127.5%

Accelerator pedal released: 0.0%

During accelerator pedal operation: Changes in proportion with the pedal movement

Power Train Driving force

Powertrain drive torque

Min.: -327680 N

Max.: 327670 N

-

-

Gear Position

Gear position information

fail / 1st / 2nd / 3rd / 4th / 5th / 6th / 7th / 8th / 9th / 10th / P/N / R

Actual gear position

-

Shift Lever Position

Shift lever position information

fail / 1st / 2nd / 3rd / 4th / 5th / 6th / B / D/M / N / P / R / No input

Actual shift lever position

-

TRC(TRAC)/VSC OFF Mode

TRAC/VSC off mode

Normal mode (TRC(TRAC) ON/VSC ON) /

TRC(TRAC) OFF mode (TRC(TRAC) OFF/VSC ON) /

Not defined /

VSC OFF mode (TRC(TRAC) OFF/VSC OFF)

Normal mode (TRC(TRAC) ON/VSC ON): Normal mode

TRC(TRAC) OFF mode (TRC(TRAC) OFF/VSC ON): TRAC off mode

Not defined: Not defined

VSC OFF mode (TRC(TRAC) OFF/VSC OFF): VSC off mode

-

Brake Hold Control Mode

Brake hold control mode

Out of control mode /

Pressure hold mode /

Pressure release mode /

EPB lock mode

Out of control mode: Brake hold control system is off or brake hold control system is stand-by mode (brake hold standby indicator light is illuminated)

Pressure hold mode: Brake hold control is operating (brake hold operated indicator light is illuminated)

Pressure release mode: Brake hold control is released (brake hold standby indicator light not illuminated)

EPB lock mode: Parking brake is engaged during brake hold control

HINT:

  • EPB stands for electric parking brake
  • If the brake pedal is not depressed for 3 minutes of more after entering pressure hold mode, the system automatically changes to EPB lock mode

FR Target Oil Pressure

Front wheel RH target oil pressure

Min.: 0.0 MPa

Max.: 20.0 MPa

-

Different according to target oil pressure of each wheel

FL Target Oil Pressure

Front wheel LH target oil pressure

Min.: 0.0 MPa

Max.: 20.0 MPa

-

Different according to target oil pressure of each wheel

RR Target Oil Pressure

Rear wheel RH target oil pressure

Min.: 0.0 MPa

Max.: 20.0 MPa

-

Different according to target oil pressure of each wheel

RL Target Oil Pressure

Rear wheel LH target oil pressure

Min.: 0.0 MPa

Max.: 20.0 MPa

-

Different according to target oil pressure of each wheel

Vehicle Speed

Maximum wheel speed sensor reading

Min.: 0.0 km/h (0.0 mph)

Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed Grade

Vehicle acceleration

Min.: -25.105 m/s2

Max.: 24.908 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During driving: Changes in proportion with vehicle acceleration/deceleration

Vehicle Stop Time from IG ON

Time vehicle stopped after engine switch turned to ON

Min.: 0 s

Max.: 1275 s

-

-

Travel Distance from IG ON

Driving time after engine switch turned to ON

Min.: 0 s

Max.: 1275 s

-

-

Elapsed Time

Time elapsed after engine switch turned on (IG)

Min.: 0.00 s

Max.: 100661.760 s

-

-

MT2

Motor drive voltage value

Min.: 0.0 V

Max.: 25.5 V

-

-

IG Switch

Engine switch on (IG) status

OFF / ON

-

-

Stop Light SW

Stop light switch assembly (STP terminal input)

OFF / ON

OFF: Brake pedal released

ON: Brake pedal depressed

HINT:

The brake pedal state is determined using the voltage at terminal STP

Parking Brake SW

Parking brake switch

OFF / ON

OFF: Parking brake released

ON: Parking brake applied

-

Brake Pedal Load Sensing SW

Brake pedal load sensing switch

OFF / ON

OFF: Brake pedal released

ON: Brake pedal depressed

-

Brake Hold Switch

Brake hold switch (PKB terminal input)

OFF / ON

OFF: Brake hold switch OFF

ON: Brake hold switch ON

HINT:

The brake hold switch state is determined using the voltage at terminal PKB

Stop Light Relay

Semiconductor PWR integration ECU

(STP2 terminal input)

OFF / ON

OFF: Semiconductor PWR integration ECU (STP2 terminal input) OFF

ON: Semiconductor PWR integration ECU (STP2 terminal input) ON

HINT:

The stop light state is determined using the voltage at terminal STP2

Inspection Mode

Inspection mode

OFF / ON

OFF: Normal mode

ON: Inspection mode

HINT:

Refer to utility for details on how to enter inspection mode*1

TRC(TRAC) Control

TRAC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

TRC(TRAC) Engine Control

TRAC engine control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

TRC(TRAC) Brake Control

TRAC brake control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FR Wheel VSC Ctrl Status

Front wheel RH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FL Wheel VSC Ctrl Status

Front wheel LH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RR Wheel VSC Ctrl Status

Rear wheel RH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RL Wheel VSC Ctrl Status

Rear wheel LH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FR Wheel ABS Ctrl Status

Front wheel RH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FL Wheel ABS Ctrl Status

Front wheel LH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RR Wheel ABS Ctrl Status

Rear wheel RH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RL Wheel ABS Ctrl Status

Rear wheel LH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

HAB Control

High power assist brake status

OFF / ON

OFF: During not control

ON: During control

-

Fail Status

Brake booster failure status

OFF / ON

OFF: During not control

ON: During control

-

Fail Control

Failure control status

OFF / ON

OFF: During not control

ON: During control

-

BA Ctrl Status

BA control status

OFF / ON

OFF: During not control

ON: During control

-

PBA Ctrl Status

PBA control status

OFF / ON

OFF: During not control

ON: During control

-

Stop Light Relay State for ECU Control

Semiconductor PWR integration ECU status (STPO terminal output) (value detected by ECU)

OFF / ON

OFF: Semiconductor PWR integration ECU not operating

ON: Semiconductor PWR integration ECU operating

-

Solenoid State for ECU Control

ABS solenoid relay status (for ECU control)

OFF / ON

OFF: ABS solenoid relay not operating

ON: ABS solenoid relay operating

-

Motor State for ECU Control

ABS motor relay status (for ECU control)

OFF / ON

OFF: ABS motor relay not operating

ON: ABS motor relay operating

-

Operation History of IG OFF while Vehicle is moving

History of engine switch turned off when vehicle is in motion

OFF / ON

OFF: No history

ON: History of engine switch turned off with vehicle speed 3 km/h (2 mph) or higher

-

Dealer Mode

Dealer Mode (Signal Check mode or Calibration mode) status

OFF / ON

OFF: Normal mode

ON: Dealer Mode (Signal Check mode or Calibration mode)

HINT:

  • for details on Dealer Mode (Signal Check), refer to test mode procedure*2
  • for details on Dealer Mode (Calibration), refer to utility*3

Zero Point Memory State of Steering Angle Sensor

Steering sensor zero point memorization status

Zero point is not memorized / Zero point is memorized

-

HINT:

The steering sensor zero point is acquired when the vehicle is being driven in a straight line at a speed of 15 km/h (9 mph) or more for approximately 1 second

TRC(TRAC)/VSC OFF SW

VSC OFF switch (combination switch assembly) (CSW terminal input)

OFF / ON

OFF: VSC OFF switch (combination switch assembly) OFF

ON: VSC OFF switch (combination switch assembly) ON

HINT:

The VSC OFF switch (combination switch assembly) state is determined using the voltage at terminal CSW

FR Speed Open

Front speed sensor RH open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C050614, C14E314

FL Speed Open

Front speed sensor LH open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C050014, C14E014

RR Speed Open

Rear speed sensor RH open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C051214, C14E914

RL Speed Open

Rear speed sensor LH open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C050C14, C14E614

EFI Communication Open

ECM communication open detection

Under intermittent / Normal

Under intermittent: ECM communication invalid state detected

Normal: ECM communication invalid state not detected

  • Related Vehicle Control History (RoB): X2079
  • Related DTC: U010087

Yaw Rate Open

Yaw rate sensor open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: U012587

Deceleration Open

Acceleration sensor open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: U012587

Steering Open

Steering sensor open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: U012687

Master Cylinder Open

Master cylinder pressure sensor open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C054031

FR Speed Sensor Voltage Open

Front speed sensor RH voltage open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C05061F

FL Speed Sensor Voltage Open

Front speed sensor LH voltage open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C05001F

RR Speed Sensor Voltage Open

Rear speed sensor RH voltage open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C05121F

RL Speed Sensor Voltage Open

Rear speed sensor LH voltage open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C050C1F

M/C Pressure Sensor Noise

Master cylinder pressure sensor noise detection

Under intermittent / Normal

Under intermittent: Noise detected

Normal: Noise not detected

Related DTC: C05401F

Brake Pedal Switch Open

Brake pedal load sensing switch open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C004013

Yaw Rate Sensor Voltage Open

Yaw rate sensor voltage open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C14D71C

EFI Communication Invalid

ECM communication invalid detection

Under intermittent / Normal

Under intermittent: ECM communication invalid state detected

Normal: ECM communication invalid state not detected

  • Related Vehicle Control History (RoB): X2079
  • Related DTC: U010087

Master Cylinder Pressure Sensor Power Supply Open

Master cylinder pressure sensor power supply voltage status

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C054049

Solenoid Power Supply Open

Solenoid power supply voltage status

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C143A7F

Motor Power Supply Open

Motor power supply voltage status

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C052F14

Stop Switch Open

Momentary interruption (open circuit) status in wire harness between skid control ECU (brake actuator assembly) and stop light switch assembly status

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

Related DTC: C13807E, C13807F, P057113

Air Bag ECU Communication Open

Airbag sensor assembly open detection

Under intermittent / Normal

Under intermittent: Momentary interruption detected

Normal: Momentary interruption not detected

  • Related Vehicle Control History (RoB): X2086
  • Related DTC: U015187
  • *1: for entering inspection mode: Click here
  • *2: for performing Dealer Mode (Signal Check): Click here
  • *3: for entering Dealer Mode (Calibration): Click here

CLEAR FREEZE FRAME DATA

NOTICE:

Clearing the DTC will also clear the Freeze Frame Data.

(a) Connect the Techstream to the DLC3.

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

(c) Clear the DTC and Freeze Frame Data.

Click here

Chassis > Brake/EPB > Clear DTCs
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    FAIL-SAFE CHART FAIL-SAFE OPERATION If there is a problem with sensor signals or actuator systems, the skid control ECU prohibits power supply to the brake actuator assembly and informs the ECM of ...

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

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

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