Toyota CH-R Service Manual: Freeze Frame Data

FREEZE FRAME DATA

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 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.

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/EPB / Trouble Codes.

Chassis > ABS/VSC/TRAC/EPB > Trouble Codes

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

Chassis > ABS/VSC/TRAC/EPB

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Elapsed Time after Freeze Trigger

Elapsed time after freeze trigger

Min.: 0 msec, Max.: 510 msec

-

-

Number of IG ON

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

0 to 31

-

-

Buzzer

Meter buzzer

ON or OFF

OFF: Buzzer off

No change

Stop Light SW

Stop light switch

ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

Parking Brake SW

Parking brake switch

ON or OFF

ON: Parking brake applied

OFF: Parking brake released

-

Gear Position

Gear position information

P/N, R, 1st-8th, 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

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

Actual operated system

Non: No operation is activated.

ABS: ABS is activated.

VSC: VSC is activated.

TRAC: TRAC is activated.

BA: BA is activated.

HAB: HAB is activated.*

Fail: Fail safe mode is activated.

PBA: PBA is activated.

PB: PB is activated.*

HA-CTRL: Hill-start assist control is activated.

TSC: Trailer sway control activated*

MCB: SCB is activated.*

Sys: System prohibit is activated.

Master Cylinder Sensor

Master cylinder pressure sensor reading

Min.: 0.00 V, Max.: 5.00 V

Brake pedal released: 0.20 to 0.40 V

Reading increases when brake pedal is depressed

M/C Sensor Grade

Master cylinder pressure sensor change

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

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

FR Wheel Direction

Front wheel RH direction signal

Forward or Back

Forward: Forward

Back: Backward

-

FL Wheel Direction

Front wheel LH direction signal

Forward or Back

Forward: Forward

Back: Backward

-

RR Wheel Direction

Rear wheel RH direction signal

Forward or Back

Forward: Forward

Back: Backward

-

RL Wheel Direction

Rear wheel LH direction signal

Forward or Back

Forward: Forward

Back: Backward

-

Real Engine Torque

Actual 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%

The accelerator pedal released: 0%

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

Brake Pedal Load Sensing SW

Brake pedal load sensing switch

ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

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°

Left turn: Increase

Right turn: Decrease

-

TRAC/VSC Off Mode

TRAC/VSC off mode

Normal, TRAC OFF, VSC Expert Mode, VSC OFF

Normal: Normal mode

TRAC OFF: TRAC off mode

VSC OFF: VSC off mode

-

Vehicle Speed (Control Value)

Vehicle speed

(control value)

Min.: 0.0 km/h (0.0 MPH)

Max.: 326.4 km/h (202.8 MPH)

-

-

ECU +B1 Voltage

skid control ECU

(brake actuator assembly) +B1 voltage

0.00 to 20.00 V

11 to 14 V

-

RH Actuator Motor Input Voltage

Parking brake motor RH (parking brake actuator assembly RH) input voltage

0.00 to 20.00 V

-

-

RH Actuator Motor +Terminal Voltage

Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage

0.00 to 20.00 V

-

-

RH Actuator Motor -Terminal Voltage

Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage

0.00 to 20.00 V

-

-

LH Actuator Motor Input Voltage

Parking brake motor LH (parking brake actuator assembly LH) input voltage

0.00 to 20.00 V

-

-

LH Actuator Motor +Terminal Voltage

Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage

0.00 to 20.00 V

-

-

LH Actuator Motor -Terminal Voltage

Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage

0.00 to 20.00 V

-

-

EPB Switch

Electric parking brake switch assembly input

OFF, Lock, Release or Unknown

OFF: Lock switch and release switch are off

Lock: Lock switch on Release: Release switch on

When not normal, electric parking brake switch assembly release side system may be malfunctioning

HINT:

EPB stands for electric parking brake.

Auto Mode Request

Auto mode request status

OFF or ON

-

-

Shift Position

Position of shift lever

P, N, R, D or Unknown

P: Shift lever in P

N: Shift lever in N

R: Shift lever in R

D: Shift lever in D or M

-

IG Switch

IG power source status

OFF or ON

OFF: IG power source voltage is not input to skid control ECU (brake actuator assembly)

ON: IG power source voltage is input to skid control ECU (brake actuator assembly)

-

Brake Hold Ready

Brake hold control permission status

OFF or ON

-

-

Brake Hold Control Mode

Brake hold control mode

OFF, ON, Release or EPB

OFF: Brake hold control is not operating

ON: Brake hold control is operating

Release: Brake hold control is released

EPB: Parking brake is locked during brake hold control

HINT:

EPB stands for electric parking brake.

RH Actuator Current Status

Parking brake actuator assembly RH monitoring current condition

Inval or Valid

Valid

-

LH Actuator Current Status

Parking brake actuator assembly LH monitoring current condition

Inval or Valid

Valid

-

RH Actuator Nut Stroke

Parking brake actuator assembly RH nut stroke value

0.000 to 8.160 mm (0 to 0.321 in.)

-

-

LH Actuator Nut Stroke

Parking brake actuator assembly LH nut stroke value

0.000 to 8.160 mm (0 to 0.321 in.)

-

-

RH Actuator Motor Actual Current

Parking brake motor RH (parking brake actuator assembly RH) current value

-5.0362 to 50.5000 A

-

-

RH Actuator 0 load Current

Parking brake motor RH (parking brake actuator assembly RH) current calibration value

-5.0362 to 50.5000 A

-

-

LH Actuator Motor Actual Current

Parking brake motor LH (parking brake actuator assembly LH) current value

-5.0362 to 50.5000 A

-

-

LH Actuator 0 load Current

Parking brake motor LH (parking brake actuator assembly LH) current value

-5.0362 to 50.5000 A

-

-

Counter of IG ON After EPB Control Cancel

Number of times the ignition switch was turned to ON after EPB control was cancelled

0 to 255 Times

-

-

RH Actuator Status

Parking brake actuator assembly RH condition

Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control

-

-

LH Actuator Status

Parking brake actuator assembly LH condition

Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control

-

-

Detailed Freeze DTC

Number of detailed freeze DTCs

0 to 65535

-

-

RH Actuator Motor Gradient Current

Parking brake motor RH (parking brake actuator assembly RH) current gradient

-5.0362 to 50.5000 A

-

-

LH Actuator Motor Gradient Current

Parking brake motor LH (parking brake actuator assembly LH) current gradient

-5.0362 to 50.5000 A

-

-

RH Actuator Motor Relay1

Parking brake motor relay 1 RH condition

OFF or ON

-

-

RH Actuator Motor Relay2

Parking brake motor relay 2 RH condition

OFF or ON

-

-

RH Actuator Motor Relay3

Parking brake motor relay 3 RH condition

OFF or ON

-

-

RH Actuator Motor Relay4

Parking brake motor relay 4 RH condition

OFF or ON

-

-

LH Actuator Motor Relay1

Parking brake motor relay 1 LH condition

OFF or ON

-

-

LH Actuator Motor Relay2

Parking brake motor relay 2 LH condition

OFF or ON

-

-

LH Actuator Motor Relay3

Parking brake motor relay 3 LH condition

OFF or ON

-

-

LH Actuator Motor Relay4

Parking brake motor relay 4 LH condition

OFF or ON

-

-

RH Actuator Motor Current High

Parking brake motor RH (parking brake actuator assembly RH) overcurrent

OFF or ON

-

-

RH Actuator Motor Driver Operation Status

Parking brake motor RH (parking brake actuator assembly RH) driver status

OK or NG

-

-

LH Actuator Motor Current High

Parking brake motor LH (parking brake actuator assembly LH) overcurrent status

OFF or ON

-

-

LH Actuator Motor Driver Operation Status

Parking brake motor LH (parking brake actuator assembly LH) driver status

OK or NG

-

-

*: Not equipped

CLEAR FREEZE FRAME DATA

NOTICE:

Clearing the DTCs 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.

Click here

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