Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Freeze Frame Data

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System(for Hv Model) / Freeze Frame Data

FREEZE FRAME DATA

FREEZE FRAME DATA/INFORMATION

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

(b) The Freeze Frame Data that is recorded when a DTC is stored can be used to check the INF codes, but only for DTCs which can be stored.

CHECK FREEZE FRAME DATA WHEN BRAKE SYSTEM OPERATES

(a) Freeze Frame Data is stored when the brake system operates. The Freeze Frame Data is updated each time the system operates.

(b) Once Freeze Frame Data is stored when the system operates, it is not cleared until the DTC is cleared.

(c) The number of times (maximum: 31) the power switch has been turned from off to on (IG) since the last time the system was activated can be stored and displayed.

HINT:

  • When the vehicle is stopped (vehicle speed below 7 km/h (4 mph)), turning the power switch from off to on (IG) does not cause the value to increase.
  • The value "31" is displayed when the power switch was turned on (IG) more than 31 times.

(d) Check Freeze Frame Data when the system operates.

(1) Turn the power switch off.

(2) Connect the Techstream to the DLC3 and turn the power switch on (IG).

(3) Enter the following menus: Chassis / ABS/VSC/TRAC / Utility.

(4) Select "ABS History".

Chassis > ABS/VSC/TRAC > Utility

Tester Display

ABS History

(5) Check the Freeze Frame Data when the system operates.

CHECK FREEZE FRAME DATA AND INFORMATION WHEN DTC WAS STORED

(a) Freeze Frame Data is stored when a DTC is output.

(b) Once Freeze Frame Data is stored when a DTC is output, it is not updated or cleared until the DTC is cleared.

(c) The number of times (maximum: 31) the power switch has been turned from off to on (IG) since a DTC was output can be stored and displayed.

HINT:

The value "31" is displayed when the power switch was turned on (IG) more than 31 times.

(d) Check the Freeze Frame Data and INF code when a DTC is output.

(1) Turn the power switch off.

(2) Connect the Techstream to the DLC3 and turn the power switch on (IG).

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

Chassis > ABS/VSC/TRAC > Trouble Codes

(4) Select a DTC to display the Freeze Frame Data.

(5) Check the Freeze Frame Data for the output DTC.

HINT:

If an "INF Code" item appears when the Freeze Frame Data is displayed, select and check the INF code.

Chassis > 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

-

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

-

Stroke Open

Brake pedal stroke sensor open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

Stroke2 Open

Brake pedal stroke sensor 2 open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

Accumulator Open

Accumulator pressure sensor open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

HV Communication Open

Hybrid vehicle communication 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

-

Yaw Rate Sensor Voltage Open

Yaw rate sensor voltage open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

Detailed Freeze DTC

Information code (INF Code) for DTC

Min.: 0, Max.: 65535

-

Information code (INF Code) of DTC is displayed

Number of IG ON

Number of times power switch turned on (IG) after Freeze Frame Data stored

0 to 31

-

-

Buzzer

Meter buzzer

ON or OFF

ON: Buzzer on

OFF: Buzzer off

-

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

-

TRC(TRAC)/VSC OFF SW

VSC OFF switch

ON or OFF

ON: Switch on

OFF: Switch off

-

Reservoir Warning SW

Brake fluid level warning switch

ON or OFF

ON: Reservoir level low

OFF: Reservoir level normal

-

Shift Lever Position

Shift position information

Fail, 1st, 2nd, 3rd, 4th, 5th, 6th/B, D/M, P,N or R

Actual shift position

-

Operated System

Operated system status

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

-

Non: No system activated

ABS: ABS activated

VSC: VSC activated

TRAC: TRAC activated

BA: BA activated

HAB: High power assist brake activated*

Fail: Fail-safe mode activated

PBA: PBA activated

PB: PB activated

HA-CTRL: Hill-start assist control activated

TSC: Trailer sway control activated*

SCB: Secondary collision brake activated

Sys: System prohibited

HINT:

*: Not supported

Stroke Sensor

Brake pedal stroke sensor

Min.: 0.00 V, Max.: 5.00 V

Brake pedal released: 0.65 to 1.35 V

Reading increases when brake pedal is depressed

Stroke Sensor Grade

Brake pedal stroke sensor change

Min.: -2560 mm/s, Max.: 2540 mm/s

Brake pedal released or depressed and held: 0 mm/s

Brake pedal is being moved: Changes in proportion to the operation speed of the brake pedal

Stroke Sensor2

Brake pedal stroke sensor 2

Min.: 0.00 V, Max.: 5.00 V

Brake pedal released: 3.65 to 4.35 V

Reading decreases when brake pedal is depressed

Yaw Rate Sensor

Yaw rate sensor

Min.: -128 degrees/s, Max.: 127 degrees/s

Vehicle stopped: 0 degrees/s

Turning right: -128 to 0 degrees/s

Turning left: 0 to 127 degrees/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 speed sensor RH

Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front speed sensor LH

Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear speed sensor RH

Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear speed sensor LH

Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed

Maximum wheel speed sensor

Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed Grade

Vehicle acceleration

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

Vehicle stopped: 0 m/s2

During driving: Changes in proportion with vehicle acceleration/deceleration

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

ECB Motor Relay

Motor relay 1 operation request

ON or OFF

ON: Relay on

OFF: Relay off

ECB: Electronically Controlled Brake System

ECB Motor Relay2

Motor relay 2 operation request

ON or OFF

ON: Relay on

OFF: Relay off

ECB: Electronically Controlled Brake System

ECB Main Relay

Main relay operation request

ON or OFF

ON: Relay on

OFF: Relay off

ECB: Electronically Controlled Brake System

IG1 Voltage Value

IG1 voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to auxiliary battery voltage

IG2 Voltage Value

IG2 voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to auxiliary battery voltage

BS1 Voltage Value

BS1 voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to auxiliary battery voltage

BS2 Voltage Value

BS2 voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to auxiliary battery voltage

VM1 Voltage Value

VM1 voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to auxiliary battery voltage

VM2 Voltage Value

VM2 voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to auxiliary battery voltage

Motor Relay Voltage Value

Motor relay voltage value

Min.: 0.00 V, Max.: 20.00 V

-

-

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

Inspection Mode

Inspection mode

Other or Inspect

Other: Normal mode

Inspect: Inspection mode

-

Steering Angle Sensor

Steering angle sensor

Min.: - 3276.8 degrees, Max.: 3276.7 degrees

Turning left: Increases

Turning right: Decreases

-

VCM1 Voltage Value

VCM1 voltage value

Min.: 0.00 V, Max.: 10.00 V

6.29 to 7.64 V

-

VCM2 Voltage Value

VCM2 voltage value

Min.: 0.00 V, Max.: 10.00 V

6.29 to 7.64 V

-

TRAC/VSC Off Mode

TRAC/VSC off mode

Normal, TRC OFF, VSC Expert Mode or VSC OFF

Normal: Normal mode

TRC OFF: TRAC off mode

VSC Expert Mode: VSC expert mode

VSC OFF: VSC off mode

-

Brake Hold Control

Brake hold control status

OFF, Hold, Release or EPB

OFF: Brake hold control not operating

Hold: Brake hold operating during brake hold control

Release: Brake hold released during brake hold control

EPB: Electric parking brake operating during brake hold control

EPB: Electric Parking Brake System

Regulator Pressure Sensor Output Variant

Reaction force pressure sensor output variant

Min.: -30 MPa/s, Max.: 225 MPa/s

-

-

SLA Solenoid Current

Linear solenoid addition valve (SLA) current

Min.: 0.00 A, Max.: 1.50 A

Brake pedal released: 0.00 A

-

SLR Solenoid Current

Linear solenoid reduction valve (SLR) current

Min.: 0.00 A, Max.: 1.50 A

Brake pedal released: 0.00 A

-

Target Oil Pressure

Wheel target hydraulic pressure

Min.: 0.00 MPa, Max.: 20.00 MPa

-

Changes according to the target wheel cylinder hydraulic pressure

Voltage of Stroke Sensor

Voltage of brake pedal stroke sensor

Min.: -2.50 V, Max.: 2.49 V

-

-

Voltage of Stroke Sensor2

Voltage of brake pedal stroke sensor 2

Min.: -2.50 V, Max.: 2.49 V

-

-

IG Switch

Power switch on (IG) status

ON or OFF

-

-

Elapsed Time after Freeze Trigger

Elapsed time after storing Freeze Frame Data

Min.: 0 msec, Max.: 1020 msec

-

-

Reaction Force Pressure

Pressure value of stroke simulator

Min.: 0.00 MPa, Max.: 24.48 MPa

0.00 to 21.60 MPa

Brake pedal is being depressed: Changes in proportion to the depression force of the brake pedal

Brake pedal released: 0.00 MPa

Servo Pressure

Pressure value of servo

Min.: 0.00 MPa, Max.: 24.48 MPa

0.00 to 21.60 MPa

Brake pedal is being depressed: Changes in proportion to the depression force of the brake pedal

Brake pedal released: 0.00 to 2.10 MPa

Reaction Force Pressure Sensor Temperature

Reaction force pressure sensor temperature

Min.: -80°C (-112°F), Max.: 175°C (347°F)

-30°C (-22°F) to 100°C (212°F)

-

Servo Pressure Sensor Temperature

Servo pressure sensor temperature

Min.: -80°C (-112°F), Max.: 175°C (347°F)

-30°C (-22°F) to 100°C (212°F)

-

Accumulator Pressure Sensor Temperature

Accumulator pressure sensor temperature

Min.: -80°C (-112°F), Max.: 175°C (347°F)

-30°C (-22°F) to 100°C (212°F)

-

Accumulator Pressure

Accumulator pressure output value

Min.: 0.00 MPa, Max.: 24.48 MPa

0.00 to 21.60 MPa

When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator

MT Voltage Value (ABS)

ABS motor voltage value

Min.: 0.00 V, Max.: 20.00 V

ABS motor off: 0.00 V

ABS motor on: 11.00 to 14.00 V

-

VCSK Voltage Value

VCSK voltage value

Min.: 0.000 V, Max.: 5.500 V

4.800 to 5.200 V

-

ECB Solenoid (SGH)

Switching solenoid valve (SGH)

ON or OFF

ON: Solenoid on

OFF: Solenoid off

ECB: Electronically Controlled Brake System

ECB Solenoid (SSA)

Switching solenoid valve (SSA)

ON or OFF

ON: Solenoid on

OFF: Solenoid off

ECB: Electronically Controlled Brake System

Reaction Force Pressure Sensor Open

Reaction force pressure sensor open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

Servo Pressure Sensor Open

Servo pressure sensor open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

Air Bag ECU Communication Open

Airbag ECU assembly communication open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

-

CLEAR FREEZE FRAME DATA AND INFORMATION

NOTICE:

Clearing the DTCs will also clear the Freeze Frame Data and information codes (INF codes).

(a) Turn the power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG).

(d) Turn the Techstream on.

(e) Clear the DTCs and Freeze Frame Data.

Click here

Chassis > ABS/VSC/TRAC > Clear DTCs
    Fail-safe Chart

    How To Proceed With Troubleshooting

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