ELECTRONICALLY CONTROLLED BRAKE SYSTEM > FREEZE FRAME DATA

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1. 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.
   

2. 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.
   

3. For DTCs stored in the skid control ECU, information (INF) codes that are contained in the Freeze Frame Data can be displayed on the intelligent tester.
   

   HINT:

   1. 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 has been turned from off to on (IG).
      
   2. 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.
      
   3. 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.
      

1. Connect the intelligent tester to the DLC3.
   

2. Turn the power switch on (IG).
   

3. Turn the intelligent tester on.
   

4. Enter the following menus: Chassis / ABS/VSC/TRC / DTC.
   

5. According to the display on the intelligent tester, select the trouble code data display with Freeze Frame Data.
   

6. Read the Freeze Frame Data recorded when the DTC was set.
   

7. Read the information.
   
   

   1. Select the item that has an information (INF) code from the Freeze Frame Data screen.
      
      

      ABS/VSC/TRC 

      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	Meter 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	-
      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: TRC 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 prohibited
      Stroke Sensor	Brake pedal stroke sensor / Min.: 0 V, Max.: 5 V	When brake pedal released: 0.65 to 1.35 V	Reading increases when brake pedal is depressed
      Accumulator Sensor	Accumulator pressure sensor / Min.: 0 V, Max.: 5 V	Specified value: 2.9 to 4.2 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	-
      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	Front speed sensor RH / 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	Front speed sensor LH / 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	Rear speed sensor RH / 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	Rear speed sensor LH / 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* Main Relay	ABS main relay / ON or OFF	ON: Relay on OFF: Relay 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	BS 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
      Motor Relay Voltage Value	Motor relay voltage value / Min.: 0 V, Max.: 20 V	During motor operation: 12 V No motor operation: 0 V	-
      Steering Angle Sensor	Steering angle sensor / Min.: - 3276.8 °, Max.: 3276.7 °	Left turn: Increase Right turn: Decrease	-
      Regulator Pressure Sensor	Regulator pressure sensor / Min.: -1 MPa, Max.: 23.99 MPa	-	-
      Regulator Pressure Sensor Output Variant	Regulator pressure sensor output variant / Min.: -30 MPa/s, Max.: 225 MPa/s	-	-
      Wheel Cylinder Pressure Sensor	Wheel cylinder pressure sensor / Min.: 0 V, Max.: 5 V	When brake pedal released: 0.1 to 0.9 V	Reading increases when brake pedal is depressed
      SLA Solenoid Current	Linear solenoid additional valve (SLA) current / Min.: 0 A, Max.: 1.5 A	When brake pedal released: 0 A	-
      SLR Solenoid Current	Linear solenoid reduction valve (SLR) current / Min.: 0 A, Max.: 1.5 A	When brake pedal released: 0 A	-
      Target Oil Pressure	Wheel target hydraulic pressure / Min.: 0 MPa, Max.: 20 MPa	Changes according to the target wheel cylinder hydraulic pressure	-
      ECB* Solenoid (SSC)	Simulator cut solenoid valve (SSC) / ON or OFF	ON: Solenoid on OFF: Solenoid off	-
      ECB* Solenoid (SCC)	Switching solenoid valve (SCC) / ON or OFF	ON: Solenoid on OFF: Solenoid off	-
      ECB* Solenoid (SMC)	Master cut solenoid valve (SMC) / ON or OFF	ON: Solenoid on OFF: Solenoid off	-
      ECB* Solenoid (SRC)	Regulator cut solenoid valve (SRC) / ON or OFF	ON: Solenoid on OFF: Solenoid off	-

      *: Electronically Controlled Brake System
      

NOTICE:

Clearing the DTCs will also clear the Freeze Frame Data and information (INF) codes.

1. Connect the intelligent tester to the DLC3.
   

2. Turn the power switch on (IG).
   

3. Turn the intelligent tester on.
   

4. Clear the DTCs and Freeze Frame Data (Click here).