Freeze Frame Data

FREEZE FRAME DATA
1. Whenever an ABS 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:
  - However, if the vehicle is stopped or 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.
  - 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 Techstream to the DLC3.
Turn the engine switch on (IG).

On the tester display, select the Freeze Frame Data.

ABS/VSC/TRAC:

ABS/VSC/TRAC - TESTER DISPLAY REFERENCE

Tester Display	Measurement Item	Reference Value
Elapsed Time after Freeze Trigger	Elapsed time after freeze trigger	Min: 0 ms, Max.: 500 ms
Number of IG ON	Number of operations of ignition switch 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 information	FAIL 1st 2nd 3rd 4th 5th 6th/B D/M P, N R
Operated System	Operated system status	ABS activated ABS VSC activated: VSC TRAC activated: TRC BA activated. BA Fail safe mode activated: FAIL No system activated. NON System prohibited: SYS
Master Cylinder Sensor	Master cylinder pressure sensor reading	Brake pedal released: 0.3 to 0.5 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
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 mph (0 km/h), Max.: 202 mph (326 4 km/h)
FL Wheel Speed	FL wheel speed	Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
RR Wheel Speed	RR wheel speed	Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
RL Wheel Speed	RL wheel speed	Min.: 0 mph (0 km/h), Max.: 202 mph (326 4 km/h)
Vehicle Speed	Vehicle speed reading	Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
Vehicle Speed Grade	Vehicle speed grade	Min.: -25.11 m/s² , Max.: 24.91 m/s²
Real Engine Torque	Real engine torque	Min.: -1,024 Nm, Max.: 1,023 Nm
Accelerator Opening Angle %	Accelerator opening angle %	Min.: 0 %, Max.: 128%
Brake pedal Load Sensing SW	Brake pedal load sensing switch signal	Brake pedal load sensing switch ON: ON, OFF: OFF
Inspection Mode	Inspection mode	OTHER. Normal, INSPECT. Service
Steering Angle Sensor	Steering angle sensor reading	Left turn. Increase Right turn: Decrease
Pre Crash Brake OFF Switch	Pre crash brake OFF switch signal	Pre crash brake OFF switch ON: ON, OFF: OFF

CLEAR FREEZE FRAME DATA
NOTE: Clearing the DTC will also clear the Freeze Frame Data.
1. Connect Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Clear the DTC and Freeze Frame Data.
  HINT:
  
  Refer to Techstream operator's manual for further details.