Lexus IS250 IS220d GSE20 ALE20 - BRAKE CONTROL
VEHICLE STABILITY CONTROL SYSTEM (w/ VDIM) - FREEZE FRAME DATA
| 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.
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.
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 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 0.9 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: 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 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 |
| 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 |