Freeze Frame Data

FREEZE FRAME DATA
1. Whenever an ABS and/or VSC DTC is detected, the skid control ECU stores the current vehicle (sensor) state as Freeze Frame Data.
2. The skid control ECU stores the number of times (maximum: 31) the engine switch has been turned from off to on (IG) since the last time the ABS was activated.
  HINT:
  - If the vehicle is stopped, at a low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU will stop counting the number of times the engine switch had been turned from off to on (IG).
  - Freeze Frame Data at the time the ABS operates:
    The skid control ECU 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 erased.
  - Freeze Frame Data at the time a DTC is detected:
    When the skid control ECU stores data at the time a DTC is detected, no updates will be performed until the data is cleared.

CHECK FREEZE FRAME DATA

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Chassis/ABS/VSC/TRAC/Trouble Codes.

According to the Techstream display, select the trouble code data display with Freeze Frame Data.

ABS/VSC/TRAC

TESTER DISPLAY REFERENCE CHART

Tester Display	Measurement Item	Reference Value
Elapsed Time after Freeze Trigger	Elapsed time after freeze frame trigger	Min.: 0 ms, Max.: 500 ms
Number of IG ON	Number of operations of engine switch being turned on (IG) after storing Freeze Frame Data	0 to 31
Buzzer	Skid control buzzer signal	Skid control buzzer ON: ON, OFF: OFF
Stop Lamp SW	Stop light switch signal	Stop light switch ON: ON, OFF: OFF
Parking Brake SW	Parking brake switch signal	Parking brake switch ON: ON, OFF: OFF
Gear Position	Gear position information	FAIL 1st 2nd 3rd 4th 5th 6th 7th 8th P, N R NOT R
Shift Lever Position	Shift lever position or range information	FAIL 1st 2nd 3rd 4th 5th 6th/B D/M P, N R
Operated System	Operated system status	ABS: ABS activated VSC: VSC activated TRC: TR(A)C activated BA: BA activated HAB: HAB activated PBA: PBA activated PB: PB activated HA-CTRL: Hill-start assist control activated FAIL: Fail safe mode activated SYS: System prohibit activated NON: No operation activated
Master Cylinder Sensor	Master cylinder pressure sensor reading	Brake pedal released: 0.3 to 0.9 V Brake pedal depressed: 0.8 to 4.5 V
M/C Sensor Grade	Master cylinder pressure sensor change	Min.: -30 MPa/s, Max.: 225 MPa/s
Yaw Rate Sensor	Yaw rate sensor reading	Min.: -128 deg/s, Max.: 127 deg/s
Steering Angle Sensor	Steering angle sensor reading	Left turn: Increase Right turn: Decrease
Lateral G	Lateral G	Min.: -25.11 m/s² , Max.: 24.91 m/s²
Forward and Rearward G	Forward and backward G	Min.: -25.11 m/s² , Max.: 24.91 m/s²
FR Wheel Speed	FR wheel speed	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
FL Wheel Speed	FL wheel speed	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
RR Wheel Speed	RR wheel speed	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
RL Wheel Speed	RL wheel speed	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
Vehicle Speed	Vehicle speed reading	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
Vehicle Speed Grade	Vehicle speed grade	Min.: -25.11 m/s² , Max.: 24.91 m/s²
FR Wheel Direction	Front wheel direction RH signal	Front wheel direction RH FORWARD: Forward, BACK: Backward
FL Wheel Direction	Front wheel direction LH signal	Front wheel direction LH FORWARD: Forward, BACK: Backward
RR Wheel Direction	Rear wheel direction RH signal	Rear wheel direction RH FORWARD: Forward, BACK: Backward
RL Wheel Direction	Rear wheel direction LH signal	Rear wheel direction LH FORWARD: Forward, BACK: Backward
Real Engine Torque	Real engine torque	Min.: -1024 Nm, Max.: 1023 Nm
Accelerator Opening Angle %	Accelerator opening angle %	Min.: 0%, Max.: 128%
TRC/VSC Off Mode	TR(A)C/VSC off mode	NORMAL: Normal mode TRC OFF: TR(A)C off mode VSC OFF: VSC off mode
Brake Pedal Load Sensing SW	Brake pedal load sensing switch signal	Brake pedal load sensing switch ON: ON, OFF: OFF

CLEAR FREEZE FRAME DATA
NOTE: Clearing the DTCs will also clear the Freeze Frame Data.
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Clear the DTCs and Freeze Frame Data (See DTC CHECK/CLEAR ).