Freeze Frame Data
- FREEZE FRAME DATA
- Whenever a DTC is detected of 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 engine switch has been turned from off to on (IG) since the last time the ABS was activated.
HINT:
- However, if the vehicle is stopped or at low speed (4.3 mph (7 km/h) 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.
- Connect the intelligent tester to the DLC3.
- Turn the engine switch on (IG).
- From the display on the tester, select the FREEZE FRAME DATA.FREEZE FRAME DATA
Intelligent Tester Display Measurement Item Reference Value VEHICLE SPD Vehicle speed reading Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) STOP LAMP SW Stop light switch signal Stop light switch ON: ON, OFF: OFF #IG ON Number of operations of engine switch on (IG) after storing freeze frame data 0 to 31 MAS CYL PRESS 1 Master cylinder pressure sensor reading Brake pedal released: 0.3 to 0.9 V Brake pedal depressed: 0.8 to 4.5 V M/C PRESS GRADE Master cylinder pressure sensor change Min.: -30 MPa/s, Max.: 200 MPa/s YAW RATE Yaw rate sensor reading Min.: -128 deg/s, Max.: 127 deg/s STEERING SEN Steering angle sensor reading Left turn: Increase Right turn: Drop FORWARD & REA G Forward and backward G Min.: -25.11 m/s2 , Max.: 24.91 m/s2 SPD GRADE Vehicle speed grade Min.: -25.11 m/s2 , Max.: 24.91 m/s2 TROUBLE CODE Freeze frame DTC 0 to 65535 BUZZER Skid control buzzer signal Skid control buzzer ON: ON, OFF: OFF ACCELERATOR % Accelerator opening angle % Min.: 0 %, Max.: 128 % PARKING BRAKE SW Parking brake switch signal Parking brake switch ON: ON, OFF: OFF FR WHEEL DIR Front right wheel direction signal Front right wheel direction FORWARD: Forward, BACK: Back FL WHEEL DIR Front left wheel direction signal Front left wheel direction FORWARD: Forward, BACK: Back RR WHEEL DIR Rear right wheel direction signal Rear right wheel direction FORWARD: Forward, BACK: Back RL WHEEL DIR Rear left wheel direction signal Rear left wheel direction FORWARD: Forward, BACK: Back ENGINE TORQUE Real engine torque Min.: -1024 Nm, Max.: 1023 Nm FR WHEEL SPD FR wheel speed Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) FL WHEEL SPD FL wheel speed Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) RR WHEEL SPD RR wheel speed Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) RL WHEEL SPD RL wheel speed Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) LATERAL G Lateral G Min.: -25.11 m/s2 , Max.: 24.91 m/s2 GEAR POSITION Gear position information FAIL 1st 2nd 3rd 4th 5th 6th P, N R NOT R LEVER POSITION Shift lever position information FAIL 1st 2nd 3rd 4th 5th 6th/B D/M P, N R TRAC/VSC OFF SW Traction OFF switch signal Traction OFF switch ON: OFF, OFF: ON BRK PEDAL SW Brake pedal load sensing switch signal Brake pedal load sensing switch ON: ON, OFF: OFF OPERATED SYSTEM Operated system status ABS activated: ABS VSC activated: VSC TRAC activated: TRAC BA activated: BA HAB activated: HAB PBA activated: PBA PB activated: PB HAC activated: HAC Fail safe mode activated: FAIL No system activated: SYS FREEZE TIME Elapsed time after freeze trigger Min.: 0 ms, Max.: 500 ms FRAME NUMBER Frame number Min.: 0, Max.: 255
- Whenever a DTC is detected of the ABS operates, the skid control ECU stores the current vehicle (sensor) state as freeze frame data.