FREEZE FRAME DATA
Troubleshooting
| FREEZE FRAME DATA |
Whenever 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.
- 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.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
From the display on the tester, select the 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 0.5 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: Drop
Forward 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: Back
FL Wheel Direction
FL wheel direction signal
Front left wheel direction
FORWARD: Forward, BACK: Back
RR Wheel Direction
RR wheel direction signal
Rear right wheel direction
FORWARD: Forward, BACK: Back
RL Wheel Direction
RL wheel direction signal
Rear left wheel direction
FORWARD: Forward, BACK: Back
Real 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 R
Shift Lever Position
Shift lever position information
FAIL
1st
2nd
3rd
4th
5th
6th/B
D/M
P, N
R
TRC (TRAC) /VSC OFF SW
Traction OFF switch signal
Traction 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
PBA activated: PBA
PB activated: PB
HAC activated: HAC
Fail safe mode activated: FAIL
No system activated: NON
System prohibited: SYS
Elapsed 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