FREEZE FRAME DATA
Using the GTS, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output.
CHECK FREEZE FRAME DATA WHEN BRAKE SYSTEM OPERATES
Freeze frame data is stored when the brake system operates. The freeze frame data is updated each time the system operates.
Once freeze frame data is stored when the system operates, it is not cleared until the DTC is cleared.
The number of times (maximum: 31) the engine switch has been turned from off to on (IG) since the last time the system was activated can be stored and displayed.
After the engine switch is turned from off to on (IG), the counter does not increase if the vehicle remains below 7 km/h (4.3 mph).
The value "31" is displayed when the engine switch was turned on (IG) more than 31 times.
Check freeze frame data when the system operates
Turn the engine switch off.
Connect the GTS to the DLC3 and turn the engine switch on (IG).
Enter the following menus: Chassis / ABS/VSC/TRC / Utility.
Select "ABS History".
| Tester Display |
|---|
| ABS History |
Check the freeze frame data when the system operates.
CHECK FREEZE FRAME DATA WHEN DTC WAS STORED
Freeze frame data is stored when a DTC is output.
Once freeze frame data is stored when a DTC is output, it is not updated or cleared until the DTC is cleared.
The number of times (maximum: 31) the engine switch has been turned from off to on (IG) since a DTC was output can be stored and displayed.
The value "31" is displayed when the engine switch was turned on (IG) more than 31 times.
Check freeze frame data when DTC is output
Turn the engine switch off.
Connect the GTS to the DLC3 and turn the engine switch on (IG).
Enter the following menus: Chassis / ABS/VSC/TRC / Trouble Codes.
Select a DTC to display the freeze frame data.
Check the freeze frame data for the output DTC.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| FR Speed Open | Front speed sensor RH open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| FL Speed Open | Front speed sensor LH open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| RR Speed Open | Rear speed sensor RH open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| RL Speed Open | Rear speed sensor LH open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| EFI Communication Open | ECM communication open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Yaw Rate Open | Yaw rate sensor open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Deceleration Open | Acceleration sensor open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Steering Open | Steering angle sensor open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Master Cylinder Open | Master cylinder pressure sensor open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| FR Speed Sensor Voltage Open | Front speed sensor RH voltage open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| FL Speed Sensor Voltage Open | Front speed sensor LH voltage open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| RR Speed Sensor Voltage Open | Rear speed sensor RH voltage open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| RL Speed Sensor Voltage Open | Rear speed sensor LH voltage open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| M/C Pressure Sensor Noise | Master cylinder pressure sensor noise detection | Error or Normal | Error: Malfunction Normal: Normal |
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| Brake Pedal Switch Open | Brake pedal load sensing switch open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Yaw Rate Sensor Voltage Open | Yaw rate sensor voltage open detection | Error or Normal | Error: Momentary interruption Normal: Normal |
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| EFI Communication Invalid | ECM communication invalid detection | Error or Normal | Error: Invalid Normal: Normal |
- |
| Number of IG ON | Number of times engine switch turned on (IG) after Freeze Frame Data stored | 0 to 31 | - | - |
| Elapsed Time | Time elapsed after engine switch turned on (IG) | Min.: 0 sec, Max.: 100661 sec | - | - |
| Stop Light SW | Stop light switch assembly | ON or OFF | ON: Brake pedal depressed OFF: Brake pedal released |
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| Parking Brake SW | Parking brake switch assembly | ON or OFF | ON: Parking brake applied OFF: Parking brake released |
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| Gear Position | Gear Position information | P, N, R, 1st-10th, Fail or Not R | Actual gear position | - |
| Shift Lever Position | Shift lever position information | Fail, 1st-5th, 6th/B, D/M, "P,N" or R | Actual shift lever position | - |
| Operated System | Operated system status | ABS, VSC, TRC, BA, HAB, PBA, PB, HA-CTRL, TSC, SCB, Fail, Sys or Non | Actual operated system | ABS: ABS activated VSC: VSC activated TRC: TRC 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* SCB: Secondary collision brake is activated* Fail: Fail safe mode activated Sys: System prohibit activated Non: No operation activated
Tip:
*: Not supported |
| 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 |
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| 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.: 326.4 km/h (203 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.: 326.4 km/h (203 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.: 326.4 km/h (203 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.: 326.4 km/h (203 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.: 326.4 km/h (203 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
| Vehicle Speed Grade | Vehicle acceleration | 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.: 127.5% | 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 to 14 V | Changes in proportion to battery voltage |
| BS1 Voltage Value | +BS voltage value | Min.: 0.00 V, Max.: 20.00 V | Engine switch on (IG): 11 to 14 V | Changes in proportion to battery voltage |
| FR Target Oil Pressure | The value of the target oil pressure applied to the front brake RH | Min.: 0.00 Mpa, Max.: 20.00 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.: 0.00 Mpa, Max.: 20.00 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.: 0.00 Mpa, Max.: 20.00 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.: 0.00 Mpa, Max.: 20.00 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 |
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| Inspection Mode | Inspection mode | Other or Inspect | Other: Normal mode Inspect: Inspection mode |
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| Steering Angle Sensor | Steering angle sensor | Min.: -3276.8°, Max.: 3276.7° | Turning left: Increases Turning right: Decreases |
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| TRC/VSC Off Mode | TRC/VSC off mode | Normal, TRC OFF, VSC Expert Mode or VSC OFF | Normal: Normal mode TRC OFF: TRC off mode VSC Expert Mode: VSC expert mode VSC OFF: VSC off mode |
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| 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 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 |
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| Vertical Acceleration Sensor Open | Momentary interruption (open circuit) status in the wire harness between the skid control ECU (brake actuator assembly) and the roll rate and vertical acceleration sensor (yaw rate sensor) | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Master Cylinder Pressure | Master cylinder pressure sensor pressure | Min.: 0.00 Mpa, Max.: 24.48 Mpa | Brake pedal depressed: Proportional to pedal force Brake pedal released: 0.00 to 1.76 Mpa |
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| Master Cylinder Sensor Temperature | Master cylinder pressure sensor temperature | Min.: -80°C (-112°F), Max.: 175°C (347°F) | - | Displays current master cylinder temperature |
| Vehicle Stop Time from IG ON | Time vehicle stopped after engine switch turned on (IG) | Min.: 0 s, Max.: 1275 s | - | - |
| Travel Distance from IG ON | Driving time after engine switch turned on (IG) | Min.: 0 s, Max.: 1275 s | - | - |
| Engine Revolutions | Engine speed | Min.: 0 rpm, Max.: 25500 rpm | - | - |
| Motor Power Supply Voltage | Motor power supply voltage | Min.: 0.00 V, Max.: 20.00 V | Engine switch on (IG): 11 to 14 V | Changes in proportion to battery voltage |
| Solenoid Power Supply Voltage | Solenoid power supply voltage | Min.: 0.00 V, Max.: 20.00 V | Engine switch on (IG): 11 to 14 V | Changes in proportion to battery voltage |
| MT Voltage Value | Motor voltage value | Min.: 0.00 V, Max.: 20.00 V | - | Changes in proportion to battery voltage |
| Stop Light Relay State for ECU Control | Stop light control relay (semiconductor PWR integration ECU) status (for ECU control) | ON or OFF | ON: Stop light control relay (semiconductor PWR integration ECU) on (Stop light on) OFF: Stop light control relay (semiconductor PWR integration ECU) off (Stop light off) |
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| Solenoid State for ECU Control | Solenoid (for ECU control) status | ON or OFF | ON: ABS solenoid relay operating OFF: ABS solenoid relay not operating |
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| Motor State for ECU Control | Motor (for ECU control) status | ON or OFF | ON: ABS motor relay operating OFF: ABS motor relay not operating |
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| Operation History of IG OFF while Vehicle is moving | History of engine switch turned off when vehicle is in motion | ON or OFF | ON: History of engine switch turned off with vehicle speed 3 km/h (2 mph) or higher OFF: No history |
- |
| Master Cylinder Pressure Sensor Power Supply Open | Master cylinder pressure sensor power supply voltage status | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Solenoid Power Supply Open | Solenoid power supply voltage status | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Motor Power Supply Open | Motor power supply voltage status | Error or Normal | Error: Momentary interruption Normal: Normal |
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| Stop Switch Open | Momentary interruption (open circuit) status in the wire harness between the skid control ECU (brake actuator assembly) and the stop light switch assembly | Error or Normal | Error: Momentary interruption Normal: Normal |
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| IG Switch | Engine switch on (IG) status | ON or OFF | - | - |
| Elapsed Time after Freeze Trigger | Elapsed time after storing freeze frame data | Min.: 0 msec, Max.: 1020 msec | - | - |
CLEAR FREEZE FRAME DATA
Clearing the DTCs will also clear the Freeze Frame Data.
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Clear the DTCs and Freeze Frame Data.