Toyota Venza: Freeze Frame Data

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / Freeze Frame Data

FREEZE FRAME DATA

1. FREEZE FRAME DATA

(a) Whenever an ABS DTC is detected, the skid control ECU stores the current vehicle (sensor) state as Freeze Frame Data.

(b) The skid control ECU 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:

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.
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.

2. CHECK FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Chassis / ABS/VSC/ TRAC / Trouble Codes.

(e) According to the display on the Techstream, select the trouble code data display with Freeze Frame Data.

ABS/VSC/TRAC

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Elapsed Time after Freeze Trigger	Elapsed time after freeze trigger / Min.: 0 msec, Max.: 500 msec	-	-
Number of IG ON	Number of operations of ignition switch being turned to ON after storing Freeze Frame Data / 0 to 31	-	-
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	-
Gear Position	Gear position information / P,N, R, 1st-8th, 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, Fail, Sys or Non	-	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 Fail: Fail safe mode activated Sys: System prohibit activated Non: No operation activated
Master Cylinder Sensor	Master cylinder pressure sensor reading / Min.: 0 V, Max.: 5 V	When brake pedal is released: 0.3 to 0.9 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 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 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 Nm, Max.: 1023 Nm	-	-
Accelerator Opening Angle %	The difference of a present accelerator / Min.: 0%, Max.: 128%	When the accelerator pedal is released: 0%	During accelerator pedal operation: Changes in proportion with the pedal movement
Brake Pedal Load Sensing SW	Brake pedal load sensing switch / ON or OFF	ON: Brake pedal depressed beyond the specified point OFF: Brake pedal not depressed beyond the 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°	Left turn: Increase Right turn: Decrease	-
TRAC/VSC Off Mode	TRAC/VSC off mode / Normal, TRC OFF or VSC OFF	Normal: Normal mode TRC OFF: TRAC off mode VSC OFF: VSC off mode	-

3. CLEAR FREEZE FRAME DATA

NOTICE:

Clearing the DTC will also clear the Freeze Frame Data.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

Dtc Check / Clear

DTC CHECK / CLEAR 1. DTC CHECK/CLEAR (When Using the Techstream) (a) Check for DTCs. (1) Connect the Techstream to the DLC3. (2) Turn the ignition switch to ON. (3) Turn the Techstream on. (4) R ...

Fail-safe Chart

FAIL-SAFE CHART 1. FAIL-SAFE OPERATION If there is a problem with sensor signals or actuator systems, the skid control ECU prohibits power supply to the brake actuator assembly and inform ...

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