VEHICLE STABILITY CONTROL SYSTEM FREEZE FRAME DATA
FREEZE FRAME DATA
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.
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.
Tip: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
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / ABS/VSC/TRC / Trouble Codes.
Chassis > ABS/VSC/TRC > Trouble Codes
Select a DTC to display its Freeze Frame Data.
Chassis > ABS/VSC/TRC
Tester Display
Measurement Item
Range
Normal Condition
Diagnostic Note
Elapsed Time after Freeze Trigger
Elapsed time after freeze trigger
Min.: 0 msec, Max.: 500 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
for Automatic Transmission
Shift Lever Position
Shift lever position information
P/N, R, D/M, 1st-6th/B or Fail
Actual shift lever position
for Automatic Transmission and Continuously Variable Transaxle
Operated System
Operated system status
ABS, VSC, TRC, BA, HAB, PBA, PB, HA-CTRL, Fail, Sys or Non
Actual operated system
ABS: ABS is activated.
VSC: VSC is activated.
TRC: TRC is activated.
BA: BA is activated.
HAB: HAB is activated.*
PBA: PBA is activated.
PB: PB is activated.*
HA-CTRL: Hill-start assist control is activated.
Fail: Fail safe mode is activated.
Sys: System prohibit is activated.
Non: No operation 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.: 127.0%
The accelerator pedal released: 0%
During accelerator pedal operation: Changes in proportion with the pedal movement
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
-
TRC/VSC Off Mode
TRC/VSC off mode
Normal, TRC OFF or VSC OFF
Normal: Normal mode
TRC OFF: TRC off mode
VSC OFF: VSC off mode
-
*: Not equipped
CLEAR FREEZE FRAME DATA
Note:Clearing the DTCs will also clear the Freeze Frame Data.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Clear the DTCs and Freeze Frame Data.
Chassis > ABS/VSC/TRC > Clear DTCs