FREEZE FRAME DATA

Whenever a DTC is detected or the ABS operates, 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 ignition switch has been turned from off to the ON position since the last time the ABS was activated.

HINT:
- However, if the vehicle was stopped or at low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU will not count the number since then.
- 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 when the ABS operated 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.
Connect Techstream to the DLC3.
Turn the ignition switch to the ON position.

On the tester display, select the the following menu items:

ABS/VSC/TRAC

Chassis/ABS/VSC/TRAC/Utility/ABS History.

MEASUREMENT ITEM CHART

Tester Display	Measurement Item	Reference Value
Freeze DTC	Freeze DTC (Trouble code)	0 to 65535
Stop Light SW	Stop light switch signal	Stop light switch ON. ON, OFF. OFF
Shift Lever Position	Shift lever position	FAIL P, N R D/M 4 3 2 L
Operated System	System status	ABS activated ABS VSC/TRAC activated VSC/TRAC BA activated BA No system activated NO SYS
Number of IG ON	Number of operations of ignition switch ON after memorizing freeze frame data	0 to 31
Vehicle Speed	Vehicle speed reading	min 0 km/h (0 mph), max 326 4 km/h (202 mph)
Steering Angle Sensor	Steering angle sensor reading	min -1152 max 1143
Yaw Rate Sensor	Yaw rate sensor reading	min -128 °/s, max. 127 °/s
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
Master Cylinder Grade	Master cylinder pressure sensor change	min -30 MPa/s, max 225 MPa/s
Right and left G	Right and left G	min -1 869 G, max 1 869 G
Back and forth G	Back and forth G	min -1 869 G, max 1 869 G
FR Wheel Direction	Front right wheel direction signal	Front right wheel direction FORWARD Forward, BACK Back
FL Wheel Direction	Front left wheel direction signal	Front left wheel direction FORWARD Forward, BACK Back
RR Wheel Direction	Rear right wheel direction signal	Rear right wheel direction FORWARD Forward, BACK Back
RL Wheel Direction	Rear left wheel direction signal	Rear left wheel direction FORWARD Forward, BACK Back
Throttle sensor	Throttle position sensor reading	Accelerator pedal released approx 0% Accelerator pedal depressed approx 100%
Buzzer	Skid control buzzer signal	Skid control buzzer ON ON, OFF OFF
Reservoir Warning SW	Brake fluid level warning switch signal	Brake fluid level warning switch ON ON, OFF OFF
Parking Brake SW	Parking brake switch signal	Parking brake switch ON ON, OFF OFF

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.

Safety Warning

Freeze Frame Data

Use the Manual With the Right Hardware

When to See a Mechanic

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