Freeze Frame Data [11/2017 - ]
- 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.
HINT:
- 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 system 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 Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
- Select a DTC to display its Freeze Frame Data.ABS/VSC/TRAC
Tester Display Measurement Item/Range Normal Condition Diagnostic Note FR Speed Open Front speed sensor RH open detection / Error or Normal Error: Momentary interruption
Normal: Normal- FL Speed Open Front speed sensor LH open detection / Error or Normal Error: Momentary interruption
Normal: Normal- RR Speed Open Rear speed sensor RH open detection / Error or Normal Error: Momentary interruption
Normal: Normal- RL Speed Open Rear speed sensor LH open detection / Error or Normal Error: Momentary interruption
Normal: Normal- EFI Communication Open ECM communication open detection / Error or Normal Error: Momentary interruption
Normal: Normal- Yaw Rate Open Yaw rate sensor open detection / Error or Normal Error: Momentary interruption
Normal: Normal- Deceleration Open Acceleration sensor open detection / Error or Normal Error: Momentary interruption
Normal: Normal- Steering Open Steering angle sensor open detection / Error or Normal Error: Momentary interruption
Normal: Normal- Master Cylinder Open Master cylinder pressure sensor open detection / Error or Normal Error: Momentary interruption
Normal: Normal- FR Speed Sensor Voltage Open Front speed sensor RH voltage open detection / Error or Normal Error: Momentary interruption
Normal: Normal- FL Speed Sensor Voltage Open Front speed sensor LH voltage open detection / Error or Normal Error: Momentary interruption
Normal: Normal- RR Speed Sensor Voltage Open Rear speed sensor RH voltage open detection / Error or Normal Error: Momentary interruption
Normal: Normal- RL Speed Sensor Voltage Open Rear speed sensor LH voltage open detection / Error or Normal Error: Momentary interruption
Normal: Normal- M/C Pressure Sensor Noise Master cylinder pressure sensor noise detection / Error or Normal Error: Momentary interruption
Normal: Normal- Brake Pedal Switch Open Brake pedal load sensing switch open detection / Error or Normal Error: Momentary interruption
Normal: Normal- Yaw Rate Sensor Voltage Open Yaw rate sensor voltage open detection / Error or Normal Error: Momentary interruption
Normal: Normal- EFI Communication Invalid ECM communication invalid detection / Error or Normal Error: Invalid
Normal: Normal- Number of IG ON Number of times ignition switch turned to ON after Freeze Frame Data stored / 0 to 31 - - Elapsed Time Time elapsed after ignition switch turned to ON / Min.: 0 sec, Max.: 100661 sec - - Stop Light SW Stop light switch assembly / ON or OFF ON: Brake pedal depressed
OFF: Brake pedal released- Parking Brake SW Parking brake switch assembly / ON or OFF ON: Parking brake applied
OFF: Parking brake released- Gear Position Gear position information / P, N, R, 1st-10th, Fail or Not R Actual gear position - Shift Lever Position Shift lever position information / P, N, R, D/M, 1st-6th/B or Fail Actual shift lever position - Operated System Operated system status / ABS, VSC, TRAC, BA, HAB, PBA, PB, HA-CTRL, TSC, SCB, Fail, Sys or Non Actual operated system ABS: ABS activated
VSC: VSC activated
TRAC: TRAC activated
BA: BA activated
HAB: HAB activated*
PBA: PBA activated
PB: PB activated
HA-CTRL: Hill-start assist control activated
TSC: TSC activated*
SCB: SCB is activated*
Fail: Fail safe mode activated
Sys: System prohibit activated
Non: No operation activatedM/C Sensor Grade Master cylinder pressure sensor change / Min.: -30 MPa/s, Max.: 225 MPa/s When brake pedal is released or pedal held at constant position: 0 MPa/s When brake pedal is being operated: Changes in proportion with 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 Real Engine Torque Real engine torque / Min.: -1024.0 Nm, Max.: 1023.0 Nm - - Accelerator Opening Angle % Percentage of accelerator pedal opening angle / Min.: 0.0%, Max.: 127.5% When the accelerator pedal is released: 0.0% During accelerator pedal operation: Changes in proportion with the pedal movement BS1 Voltage Value +BS voltage value / Min.: 0.00 V, Max.: 20.00 V Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage FR Target Oil Pressure Front wheel RH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa - Different according to target oil pressure of each wheel FL Target Oil Pressure Front wheel LH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa - Different according to target oil pressure of each wheel RR Target Oil Pressure Rear wheel RH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa - Different according to target oil pressure of each wheel RL Target Oil Pressure Rear wheel LH target oil pressure / Min.: 0.00 MPa, Max.: 20.00 MPa - Different according to target oil pressure of each wheel Brake Pedal Load Sensing SW Brake pedal load sensing switch / ON or OFF ON: Brake pedal depressed beyond a specified point
OFF: Brake pedal not depressed beyond a specified point- 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° Turning left: Increases
Turning right: Decreases- TRC/VSC Off Mode TRAC/VSC off mode / Normal, TRAC OFF, VSC Expert Mode or VSC OFF Normal: Normal mode
TRAC OFF: TRAC off mode
VSC Expert Mode: VSC expert mode
VSC OFF: VSC off mode- Master Cylinder Pressure Master cylinder pressure sensor pressure / Min.: 0.00 MPa, Max.: 24.48 MPa Proportional to pedal force: Pedal operated
0.00 MPa: Pedal released- Master Cylinder Sensor Temperature Master cylinder pressure sensor temperature / Min.: -80°C (-112°F), Max.: 175°C (347°F) - Displays current master cylinder temperature Vehicle Stop Time from IG ON Time vehicle stopped after ignition switch turned to ON / Min.: 0 s, Max.: 1275 s - - Travel Distance from IG ON Driving time after ignition switch turned to ON / Min.: 0 s, Max.: 1275 s - - Engine Revolutions Engine speed / Min.: 0 rpm, Max.: 25500 rpm - - Motor Power Supply Voltage Motor power supply voltage / Min.: 0.00 V, Max.: 20.00 V Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage Solenoid Power Supply Voltage Solenoid power supply voltage / Min.: 0.00 V, Max.: 20.00 V Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage MT Voltage Value Motor voltage value / Min.: 0.00 V, Max.: 20.00 V - Changes in proportion to battery voltage Stop Light Relay State for ECU Control STOP LP relay (for ECU control) / ON or OFF ON: STOP LP relay operating
OFF: STOP LP relay not operatingw/ Toyota Safety Sense P Solenoid State for ECU Control Solenoid (for ECU control) status / ON or OFF ON: Solenoid relay operating
OFF: Solenoid relay not operating- Motor State for ECU Control Motor (for ECU control) status / ON or OFF ON: Motor relay operating
OFF: Motor relay not operating- Operation History of IG OFF while Vehicle is moving History of ignition switch turned off when vehicle is in motion / ON or OFF ON: History of ignition switch turned off with vehicle speed 3 km/h (2 mph) or higher
OFF: No history- Master Cylinder Pressure Sensor Power Supply Open Master cylinder pressure sensor power supply voltage status / Error or Normal Error: Momentary interruption
Normal: Normal- Solenoid Power Supply Open Solenoid power supply voltage status / Error or Normal Error: Momentary interruption
Normal: Normal- Motor Power Supply Open Motor power supply voltage status / Error or Normal Error: Momentary interruption
Normal: Normal- Stop Switch Open Momentary interruption (open circuit) status in the wire harness between the skid control ECU (brake actuator assembly) and the stop light switch assembly / Error or Normal Error: Momentary interruption
Normal: Normal- IG Switch Ignition switch ON status / ON or OFF - - Elapsed Time after Freeze Trigger Elapsed time after storing freeze frame data / Min.: 0 msec, Max.: 1020 msec - - HINT:
*: Not supported
- CLEAR FREEZE FRAME DATA NOTE:
Clearing the DTC will also clear the Freeze Frame Data.
- Turn the ignition switch off.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Clear the DTCs and Freeze Frame Data (Refer to DTC CHECK / CLEAR [11/2017 - ] ).