Freeze Frame Data [09/2014 - 11/2017]
- FREEZE FRAME DATA
- Whenever an ABS DTC is detected, the skid control ECU (brake actuator assembly) stores the current vehicle (ECU or sensor) state as Freeze Frame Data.
- The skid control ECU (brake actuator assembly) 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:
- If the vehicle is stopped or driven at a low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU (brake actuator assembly) will stop counting the number.
- Freeze Frame Data at the time the ABS operates:
The skid control ECU (brake actuator assembly) stores and updates data whenever the ABS 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 (brake actuator assembly) stores data at the time a DTC is detected, no updates will be performed until the data is cleared.
- CHECK FREEZE FRAME DATA
- Turn the engine switch off.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
Chassis > ABS/VSC/TRAC > Trouble Codes
- Select a DTC to display its Freeze Frame Data.
Chassis > 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 times engine switch turned on (IG) after Freeze Frame Data stored 0 to 31 - - Stop Light SW Stop light switch assembly ON or OFF ON: Brake pedal depressed
OFF: Brake pedal released- Parking Brake SW Parking brake switch assembly 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, TSC, Fail, Sys or Non Actual operated system ABS: ABS activated
VSC: VSC activated
TRAC: TRAC activated
BA: BA activated
HAB: High power assist brake activated
PBA: PBA activated
PB: PB activated
HA-CTRL: Hill-start assist control activated*
TSC: Trailer sway control activated*
Fail: Fail-safe mode activated
Sys: System prohibit activated
Non: No operation activatedMaster Cylinder Sensor Master cylinder pressure sensor reading Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.30 to 0.80 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 Brake pedal 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 lateral 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: 0.00 m/s2 During driving: Changes in proportion with vehicle acceleration/deceleration Accelerator Opening Angle % Percentage of accelerator pedal opening angle Min.: 0.0%, Max.: 127.0% Accelerator pedal released: 0.0% During accelerator pedal operation: Changes in proportion with the pedal movement IG1 Voltage Value IG1 voltage value Min.: 0.00 V, Max.: 20.00 V Engine switch on (IG): 11.00 to 14.00 V - FR Target Oil Pressure The value of the target oil pressure applied to the front brake RH Min.: 0 Mpa, Max.: 20 Mpa - Operating the brake pedal: Varies depending on the target oil pressure FL Target Oil Pressure The value of the target oil pressure applied to the front brake LH Min.: 0 Mpa, Max.: 20 Mpa - Operating the brake pedal: Varies depending on the target oil pressure RR Target Oil Pressure The value of the target oil pressure applied to the rear brake RH Min.: 0 Mpa, Max.: 20 Mpa - Operating the brake pedal: Varies depending on the target oil pressure RL Target Oil Pressure The value of the target oil pressure applied to the rear brake LH Min.: 0 Mpa, Max.: 20 Mpa - Operating the brake pedal: Varies depending on the target oil pressure Brake Pedal Load Sensing SW Brake pedal load sensing switch ON or OFF ON: Brake pedal depressed
OFF: Brake pedal released- 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° Turning left: Increases
Turning right: Decreases- TRAC/VSC Off Mode TRAC/VSC off mode Normal, TRAC OFF or VSC OFF Normal: Normal mode
TRAC OFF: TRAC off mode
VSC OFF: VSC off mode- Power Train Driving force Power train driving force that is currently occurring Min.: -327680 N, Max.: 327670 N - - Lateral Acceleration Value Vertical acceleration sensor output value Min.: -25.10 m/s2 , Max.: 24.90 m/s2 - During turning: Changes in proportion with lateral acceleration Upper and Lower Acceleration Value Upward and downward acceleration value Min.: -25.10 m/s2 , Max.: 24.90 m/s2 - - With a 9.8 m/s2 (gravitational acceleration) base value, the value increases with upward acceleration and decreases with downward acceleration
- Indicates the roll rate and vertical acceleration sensor output values and provides additional enhancement to the ABS. If a malfunction occurs in the sensor, the ABS will operate as normal without a fail-safe function being performed.
HINT:
*: Not supported
- CLEAR FREEZE FRAME DATA NOTE:
Clearing the DTCs will also clear the Freeze Frame Data.
- Turn the engine switch off.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Clear the DTCs and Freeze Frame Data.
Refer to DTC CHECK / CLEAR [09/2014 - 11/2017]
Chassis > ABS/VSC/TRAC > Clear DTCs