Freeze Frame Data
- FREEZE FRAME DATA
- Whenever an ABS 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 ignition switch has been turned from off to on (IG) since the last time the ABS was activated.
HINT:
- 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 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.
- CHECK FREEZE FRAME DATA
- Connect Techstream to the DLC3.
- Turn the ignition switch on (IG).
- Turn Techstream on.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
- According to the display on the tester, select the trouble code data display with Freeze Frame Data.
ABS/VSC/TRAC:
FREEZE FRAME DATA - ABS/VSC/TRACTester Display Measurement Item Reference Value Elapsed Time after Freeze Trigger Elapsed time after freeze frame trigger Min.: 0 ms, Max.: 500 ms Number of IG ON Number of operations of ignition switch being turned on (IG) after storing Freeze Frame Data 0 to 31 Buzzer Skid control buzzer signal Skid control buzzer ON. ON, OFF: OFF Stop Lamp SW Stop light switch signal Stop light switch ON. ON, OFF: OFF Parking Brake SW Parking brake switch signal Parking brake switch ON ON, OFF OFF TRC (TRAC)/VSC OFF SW VSC OFF switch signal VSC OFF switch ON OFF, OFF ON Gear Position Gear position information FAIL 1st 2nd 3rd 4th 5th 6th 7th 8th P, N R NOT R Shift Lever Position Shift lever position information FAIL 1st 2nd 3rd 4th 5th 6th/B D/M P, N R Operated System Operated system status ABS. ABS activated VSC VSC activated TRC: TRAC activated BA BA activated HAB. HAB 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 Brake pedal released. 0.3 to 0.9 V
Brake pedal depressed 0.8 to 4.5 VM/C Sensor Grade Master cylinder pressure sensor change Min. -30 MPa/s, Max. 225 MPa/s Yaw Rate Sensor Yaw rate sensor reading Min -128 deg/s, Max. 127 deg/s Lateral G Lateral G Min.: -25.11 m/s2 , Max.: 24 91 m/s2 Forward and Rearward G Forward and backward G Min.: -25.11 m/s2 , Max.: 24.91 m/s2 FR Wheel Speed FR wheel speed Min.: 0 km/h (0 mph), Max.: 326 4 km/h (202 mph) FL Wheel Speed FL wheel speed Min.: 0 km/h (0 mph), Max.: 326 4 km/h (202 mph) RR Wheel Speed RR wheel speed Min 0 km/h (0 mph), Max 326 4 km/h (202 mph) RL Wheel Speed RL wheel speed Min 0 km/h (0 mph), Max 326 4 km/h (202 mph) Vehicle Speed Vehicle speed reading Min. 0 km/h (0 mph), Max 326 4 km/h (202 mph) Vehicle Speed Grade Vehicle speed grade Min. -25 11 m/s2 , Max. 24.91 m/s2 Real Engine Torque Real engine torque Min -1024 Nm, Max 1023 Nm Accelerator Opening Angle % Accelerator opening Angle % Min. 0%, Max. 128% Brake Pedal Load Sensing SW Brake pedal load sensing switch signal Brake pedal load sensing switch ON. ON, OFF OFF Steering Angle Sensor Steering angle sensor reading Left turn Increase
Right turn: Decrease - CLEAR FREEZE FRAME DATA NOTE: Clearing the DTCs will also clear the Freeze Frame Data.
- Connect Techstream to the DLC3.
- Turn the ignition switch on (IG).
- Clear the DTCs and DTC CHECK/CLEAR .