Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018KE2
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: FREEZE FRAME DATA; 2018 - 2020 MY Sienna [11/2017 -        ]

FREEZE FRAME DATA

1. FREEZE FRAME DATA

(a) Whenever an ABS DTC is detected, the skid control ECU (brake actuator assembly) stores the current vehicle (ECU or sensor) state as Freeze Frame Data.

(b) The skid control ECU (brake actuator assembly) stores the number of times (maximum: 31) the ignition switch has been turned from off to ON since the last time the ABS was activated.

HINT:

  • If the vehicle is stopped or driven at a low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU (brake actuator assembly) will stop counting the number.
  • Freeze Frame Data at the time the ABS operates:

    The skid control ECU (brake actuator assembly) stores and updates data whenever the ABS system operates.

    When the ECU stores data at the time a DTC is detected, the data stored during ABS operation is cleared.

  • Freeze Frame Data at the time a DTC is detected:

    When the skid control ECU (brake actuator assembly) stores data at the time a DTC is detected, no updates will be performed until the data is cleared.

2. CHECK FREEZE FRAME DATA

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.

(f) Select a DTC to display its Freeze Frame Data.

ABS/VSC/TRAC

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

FR Speed Open

Front speed sensor RH open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

FL Speed Open

Front speed sensor LH open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

RR Speed Open

Rear speed sensor RH open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

RL Speed Open

Rear speed sensor LH open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

EFI Communication Open

ECM communication open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Yaw Rate Open

Yaw rate sensor open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Deceleration Open

Acceleration sensor open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Steering Open

Steering angle sensor open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Master Cylinder Open

Master cylinder pressure sensor open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

FR Speed Sensor Voltage Open

Front speed sensor RH voltage open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

FL Speed Sensor Voltage Open

Front speed sensor LH voltage open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

RR Speed Sensor Voltage Open

Rear speed sensor RH voltage open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

RL Speed Sensor Voltage Open

Rear speed sensor LH voltage open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

M/C Pressure Sensor Noise

Master cylinder pressure sensor noise detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Brake Pedal Switch Open

Brake pedal load sensing switch open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Yaw Rate Sensor Voltage Open

Yaw rate sensor voltage open detection / Error or Normal

Error: Momentary interruption

Normal: Normal

-

EFI Communication Invalid

ECM communication invalid detection / Error or Normal

Error: Invalid

Normal: Normal

-

Number of IG ON

Number of times ignition switch turned to ON after Freeze Frame Data stored / 0 to 31

-

-

Elapsed Time

Time elapsed after ignition switch turned to ON / Min.: 0 sec, Max.: 100661 sec

-

-

Stop Light SW

Stop light switch assembly / ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

Parking Brake SW

Parking brake switch assembly / ON or OFF

ON: Parking brake applied

OFF: Parking brake released

-

Gear Position

Gear position information / P,N, R, 1st-10th, Fail or Not R

Actual gear position

-

Shift Lever Position

Shift lever position information / P,N, R, D/M, 1st-6th/B or Fail

Actual shift lever position

-

Operated System

Operated system status / ABS, VSC, TRAC, BA, HAB, PBA, PB, HA-CTRL, TSC, SCB, Fail, Sys or Non

Actual operated system

ABS: ABS activated

VSC: VSC activated

TRAC: TRAC activated

BA: BA activated

HAB: HAB activated*

PBA: PBA activated

PB: PB activated

HA-CTRL: Hill-start assist control activated

TSC: TSC activated*

SCB: SCB is activated*

Fail: Fail safe mode activated

Sys: System prohibit activated

Non: No operation activated

M/C Sensor Grade

Master cylinder pressure sensor change / Min.: -30 MPa/s, Max.: 225 MPa/s

When brake pedal is released or pedal held at constant position: 0 MPa/s

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

Yaw Rate Sensor

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

-

Lateral G

Lateral G / Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

During turning: Changes in proportion with lateral acceleration

Forward and Rearward G

Forward and backward G / Min.: - 25.10 m/s2, Max.: 24.90 m/s2

-

During acceleration/deceleration: Changes in proportion with acceleration

FR Wheel Speed

Front wheel speed sensor RH reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear wheel speed sensor RH reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear wheel speed sensor LH reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed

Maximum wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed Grade

Vehicle speed grade / Min.: -25.10 m/s2, Max.: 24.90 m/s2

Vehicle stopped: 0 m/s2

During driving: Changes in proportion with vehicle acceleration/deceleration

Real Engine Torque

Real engine torque / Min.: -1024.0 Nm, Max.: 1023.0 Nm

-

-

Accelerator Opening Angle %

Percentage of accelerator pedal opening angle / Min.: 0.0%, Max.: 127.5%

When the accelerator pedal is released: 0.0%

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

BS1 Voltage Value

+BS voltage value / Min.: 0.00 V, Max.: 20.00 V

Ignition switch ON: 11 to 14 V

Changes in proportion to battery voltage

FR Target Oil Pressure

Front wheel RH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa

-

Different according to target oil pressure of each wheel

FL Target Oil Pressure

Front wheel LH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa

-

Different according to target oil pressure of each wheel

RR Target Oil Pressure

Rear wheel RH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa

-

Different according to target oil pressure of each wheel

RL Target Oil Pressure

Rear wheel LH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa

-

Different according to target oil pressure of each wheel

Brake Pedal Load Sensing SW

Brake pedal load sensing switch / ON or OFF

ON: Brake pedal depressed beyond a specified point

OFF: Brake pedal not depressed beyond a specified point

-

Inspection Mode

Inspection mode / Other or Inspect

Other: Normal mode

Inspect: Inspection mode

-

Steering Angle Sensor

Steering angle sensor / Min.: - 3276.8°, Max.: 3276.7°

Turning left: Increases

Turning right: Decreases

-

TRC/VSC Off Mode

TRAC/VSC off mode / Normal, TRAC OFF, VSC Expert Mode or VSC OFF

Normal: Normal mode

TRAC OFF: TRAC off mode

VSC Expert Mode: VSC expert mode

VSC OFF: VSC off mode

-

Master Cylinder Pressure

Master cylinder pressure sensor pressure / Min.: 0.00 MPa, Max.: 24.48 MPa

Proportional to pedal force: Pedal operated

0.00 MPa: Pedal released

-

Master Cylinder Sensor Temperature

Master cylinder pressure sensor temperature / Min.: -80°C (-112°F), Max.: 175°C (347°F)

-

Displays current master cylinder temperature

Vehicle Stop Time from IG ON

Time vehicle stopped after ignition switch turned to ON / Min.: 0 s, Max.: 1275 s

-

-

Travel Distance from IG ON

Driving time after ignition switch turned to ON / Min.: 0 s, Max.: 1275 s

-

-

Engine Revolutions

Engine speed / Min.: 0 rpm, Max.: 25500 rpm

-

-

Motor Power Supply Voltage

Motor power supply voltage / Min.: 0.00 V, Max.: 20.00 V

Ignition switch ON: 11 to 14 V

Changes in proportion to battery voltage

Solenoid Power Supply Voltage

Solenoid power supply voltage / Min.: 0.00 V, Max.: 20.00 V

Ignition switch ON: 11 to 14 V

Changes in proportion to battery voltage

MT Voltage Value

Motor voltage value / Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to battery voltage

Stop Light Relay State for ECU Control

STOP LP relay (for ECU control) / ON or OFF

ON: STOP LP relay operating

OFF: STOP LP relay not operating

w/ Toyota Safety Sense P

Solenoid State for ECU Control

Solenoid (for ECU control) status / ON or OFF

ON: Solenoid relay operating

OFF: Solenoid relay not operating

-

Motor State for ECU Control

Motor (for ECU control) status / ON or OFF

ON: Motor relay operating

OFF: Motor relay not operating

-

Operation History of IG OFF while Vehicle is moving

History of ignition switch turned off when vehicle is in motion / ON or OFF

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

OFF: No history

-

Master Cylinder Pressure Sensor Power Supply Open

Master cylinder pressure sensor power supply voltage status / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Solenoid Power Supply Open

Solenoid power supply voltage status / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Motor Power Supply Open

Motor power supply voltage status / Error or Normal

Error: Momentary interruption

Normal: Normal

-

Stop Switch Open

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

Error: Momentary interruption

Normal: Normal

-

IG Switch

Ignition switch ON status / ON or OFF

-

-

Elapsed Time after Freeze Trigger

Elapsed time after storing freeze frame data / Min.: 0 msec, Max.: 1020 msec

-

-

HINT:

*: Not supported

3. CLEAR FREEZE FRAME DATA

NOTICE:

Clearing the DTC will also clear the Freeze Frame Data.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Clear the DTCs and Freeze Frame Data (See page 2018 - 2020 MY Sienna [11/2017 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DTC CHECK / CLEAR ).