Freeze Frame Data
- FREEZE FRAME DATA
- If an ABS DTC is detected, the skid control ECU stores the current vehicle (sensor) state as Freeze Frame Data.
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 low speed (4.3 mph (7 km/h) 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.
- Connect Techstream to the DLC3.
- Turn the engine switch on (IG).
- From the display on the tester, select the Freeze Frame Data.FREEZE FRAME DATA
Item (Display) Measurement Item Reference Value Vehicle Speed Vehicle speed reading Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) Stop Lamp SW Stop light switch signal Stop light switch ON: ON, OFF: OFF Number of IG ON Number of operations of engine switch on (IG) after storing freeze frame data 0 to 31 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 VM/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: DropForward and Rearward G Forward and backward G Min.: -25.11 m/s2 , Max.: 24.91 m/s2 Vehicle Speed Grade Vehicle speed grade Min.: -25.11 m/s2 , Max.: 24.91 m/s2 Buzzer Skid control buzzer signal Skid control buzzer ON: ON, OFF: OFF Accelerator Opening Angle % Accelerator opening angle % Min.: 0%, Max.: 128% Parking Brake SW Parking brake switch signal Parking brake switch ON: ON, OFF: OFF FR Wheel Direction FR wheel direction signal Front right wheel direction
FORWARD: Forward, BACK: BackFL Wheel Direction FL wheel direction signal Front left wheel direction
FORWARD: Forward, BACK: BackRR Wheel Direction RR wheel direction signal Rear right wheel direction
FORWARD: Forward, BACK: BackRL Wheel Direction RL wheel direction signal Rear left wheel direction
FORWARD: Forward, BACK: BackReal Engine Torque Real engine torque Min.: -1024 Nm, Max.: 1023 Nm 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) Lateral G Lateral G Min.: -25.11 m/s2 , Max.: 24.91 m/s2 Gear Position Gear position information FAIL
1st
2nd
3rd
4th
5th
6th
P, N
R
NOT RShift Lever Position Shift lever position information FAIL
1st
2nd
3rd
4th
5th
6th/B
D/M
P, N
RTRC (TRAC)/VSC OFF SW VSC OFF switch signal VSC OFF switch ON: OFF, OFF: ON Brake Pedal Load Sensing SW Brake pedal load sensing switch signal Brake pedal load sensing switch ON: ON, OFF: OFF Operated System Operated system status ABS activated: ABS
VSC activated: VSC
TRC activated: TRC
BA activated: BA
HAB activated: HAB
Fail-safe mode activated: FAIL
No system activated: NON
System prohibited: SYSElapsed Time after Freeze Trigger Elapsed time after freeze trigger Min.: 0 ms, Max.: 500 ms Inspection Mode Inspection mode Inspection mode OTHER: Normal, INSPECT: Service FR Target Oil Pressure FR wheel target oil pressure reading Min.: 0 MPa, Max.: 20 Mpa FL Target Oil Pressure FL wheel target oil pressure reading Min.: 0 MPa, Max.: 20 Mpa RR Target Oil Pressure RR wheel target oil pressure reading Min.: 0 MPa, Max.: 20 Mpa RL Target Oil Pressure RL wheel target oil pressure reading Min.: 0 MPa, Max.: 20 Mpa TRC/VSC Off Mode TRC/VSC Off Mode Normal
TRC OFF mode
VSC OFF mode
- If an ABS DTC is detected, the skid control ECU stores the current vehicle (sensor) state as Freeze Frame Data.