Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Freeze Frame Data
2010 Lexus RX 450h 3.5 BSECTION Freeze Frame Data
- FREEZE FRAME DATA/INFORMATION
- Whenever an ABS, VSC, electronically controlled brake system 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 power switch has been turned from off to on (IG) since the last time the ABS was activated.
- For DTCs stored in the skid control ECU, information (INF) codes that are contained in the Freeze Frame Data can be displayed on the Techstream.
HINT:
- However, if the vehicle is stopped or at a low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU will stop counting the number of times the power switch had been turned from off to on (IG).
- 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 cleared.
- 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.
- CHECK FREEZE FRAME DATA AND INFORMATION
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
- According to the display on the Techstream, select the trouble code data display with Freeze Frame Data.
- Read the Freeze Frame Data recorded when the DTC was set.
- Read the information.
- Select the item that has an information (INF) code from the Freeze Frame Data screen.ABS/VSC/TRAC
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Detailed Freeze DTC Detailed code for Freeze Frame DTC / Min.: 0, Max.: 65535 - Number of information (INF) code output is displayed Elapsed Time after Freeze Trigger Elapsed time after freeze trigger / Min.: 0 msec, Max.: 500 msec - - Number of IG ON Number of operations of power switch on (IG) after storing Freeze Frame Data / 0 to 31 - - Elapsed Time Elapsed time after power switch on (IG) / Min.: 0 sec., Max.: 100661.76 sec. - - Buzzer Skid control buzzer / ON or OFF ON: Buzzer on
OFF: Buzzer off- 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- TRC(TRAC)/VSC OFF SW VSC OFF switch / ON or OFF ON: Switch on
OFF: Switch off- Reservoir Warning SW Brake fluid level warning switch / ON or OFF ON: Reservoir level low
OFF: Reservoir level normal- Shift Lever Position Shift lever position information / Fail, 1st-6th/B, D/M, P/N or R Actual shift lever position - Operated System Operated system status / ABS, VSC, TRAC, BA, PB, PBA, HAB, HA-CTRL, Fail, Non or Sys - ABS: ABS activated
VSC: VSC activated
TRAC: TR(A)C activated
BA: BA activated
PB: PB activated
PBA: PBA activated
HAB: HAB activated
HA-CTRL: Hill-start assist control activated
Fail: Fail safe mode activated
Non: No system activated
Sys: System prohibitedMaster Cylinder Sensor Master cylinder pressure sensor 1 / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 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 When brake pedal is released or pedal held at constant position: 0 MPa/s When brake pedal is being depressed: Changes in proportion with pedal movement speed Master Cylinder Sensor2 Master cylinder pressure sensor 2 / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed Stroke Sensor Brake pedal stroke sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.8 to 1.2 V Reading increases when brake pedal is depressed Stroke Sensor2 Brake pedal stroke sensor 2 / Min.: 0 V, Max.: 5 V When brake pedal released: 3.8 to 4.2 V Reading decreases when brake pedal is depressed Accumulator Sensor Accumulator pressure sensor / Min.: 0 V, Max.: 5 V Specified value: 2.6 to 3.8 V When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator 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- FR W/C Sensor FR wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed FL W/C Sensor FL wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed RR W/C Sensor RR wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed RL W/C Sensor RL wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V When brake pedal released: 0.3 to 0.7 V Reading increases when brake pedal is depressed Lateral G Lateral G / Min.: -25.20 m/s2 , Max.: 24.91 m/s2 - During turning: Changes in proportion with acceleration Forward and Rearward G Forward and backward G / Min.: -25.11 m/s2 , Max.: 24.91 m/s2 - During acceleration/deceleration: Changes in proportion with acceleration FR Wheel Speed FR wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations FL Wheel Speed FL wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations RR Wheel Speed RR wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations RL Wheel Speed RL wheel speed sensor / Min.: 0 km/h (0 mph), Max.: 326.4 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 / Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations Accelerator Opening Angle % The difference of a present accelerator / Min.: 0%, Max.: 127% When the accelerator pedal released: 0% During accelerator pedal operation: Changes in proportion with the pedal movement ECB* Motor Relay ABS motor relay / ON or OFF ON: Relay on
OFF: Relay off- ECB* Motor Relay2 ABS motor relay 2 / ON or OFF ON: Relay on
OFF: Relay off- ECB* Main Relay ABS main relay / ON or OFF ON: Relay on
OFF: Relay off- ECB* Main Relay2 ABS main relay 2 / ON or OFF ON: Relay on
OFF: Relay off- ECB* Solenoid (SMC1) Master cut solenoid (SMC1) / ON or OFF ON: Solenoid on
OFF: Solenoid off- ECB* Solenoid (SMC2) Master cut solenoid (SMC2) / ON or OFF ON: Solenoid on
OFF: Solenoid off- ECB* Solenoid (SCSS) Stroke simulator solenoid (SCSS) / ON or OFF ON: Solenoid on
OFF: Solenoid off- Capacitor Mode Capacitor mode/ ON or OFF ON: Mode on
OFF: Mode off- IG1 Voltage Value IG1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage IG2 Voltage Value IG2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage BS1 Voltage Value BS1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage BS2 Voltage Value BS2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage VM1 Voltage Value VM1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage VM2 Voltage Value VM2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage +B1 Voltage Value +B1 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage +B2 Voltage Value +B2 voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage Motor Relay Voltage Value Motor relay voltage value / Min.: 0 V, Max.: 20 V - Changes in proportion to auxiliary battery voltage SLAFR Solenoid Current Linear solenoid (FRA) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLAFL Solenoid Current Linear solenoid (FLA) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLARR Solenoid Current Linear solenoid (RRA) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLARL Solenoid Current Linear solenoid (RLA) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLRFR Solenoid Current Linear solenoid (FRR) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLRFL Solenoid Current Linear solenoid (FLR) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLRRR Solenoid Current Linear solenoid (RRR) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - SLRRL Solenoid Current Linear solenoid (RLR) current / Min.: 0 A, Max.: 1.5 A When brake pedal released: 0 A - FR Target Oil Pressure FR wheel target hydraulic pressure / Min.: 0 MPa, Max.: 20 MPa Changes according to the target wheel cylinder hydraulic pressure - FL Target Oil Pressure FL wheel target hydraulic pressure / Min.: 0 MPa, Max.: 20 MPa Changes according to the target wheel cylinder hydraulic pressure - RR Target Oil Pressure RR wheel target hydraulic pressure / Min.: 0 MPa, Max.: 20 MPa Changes according to the target wheel cylinder hydraulic pressure - RL Target Oil Pressure RL wheel target hydraulic pressure / Min.: 0 MPa, Max.: 20 MPa Changes according to the target wheel cylinder hydraulic pressure - 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- VCM1 Voltage Value VCM voltage value / Min.: 0 V, Max.: 10 V Specified value: 4.8 to 5.2 V - VCM2 Voltage Value VCM2 voltage value / Min.: 0 V, Max.: 10 V Specified value: 4.8 to 5.2 V - TRAC/VSC Off Mode TR(A)C/VSC off mode / Normal, TRC OFF or VSC OFF Normal: Normal mode
TRC OFF: TR(A)C off mode
VSC OFF: VSC off mode- *: Electronically Controlled Brake System
- Select the item that has an information (INF) code from the Freeze Frame Data screen.
- CLEAR FREEZE FRAME DATA AND INFORMATION NOTE:
Clearing the DTCs will also clear the Freeze Frame Data and information (INF) codes.
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs and Freeze Frame Data. Refer to DTC CHECK / CLEAR .
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.