ANTI-LOCK BRAKE SYSTEM(for Type A) FREEZE FRAME DATA
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 ignition switch has been turned from off to ON since the last time the ABS was activated.
Tip: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 ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / ABS/VSC/TRC / Trouble Codes.
Chassis > ABS/VSC/TRC > Trouble Codes
Select a DTC to display its Freeze Frame Data.
Chassis > ABS/VSC/TRC
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 ignition switch turned to ON after Freeze Frame Data stored
0 to 31
-
-
Stop Light SW
Stop light switch
ON or OFF
ON: Brake pedal depressed
OFF: Brake pedal released
-
Parking Brake SW
Parking brake switch
ON or OFF
ON: Parking brake applied
OFF: Parking brake released
-
Operated System
Operated system status
ABS, VSC, TRC, BA, HAB, PBA, PB, HA-CTRL, 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*
Fail: Fail safe mode activated
Sys: System prohibit activated
Non: No operation activated
Forward and Rearward G
Forward and backward G
Min.: - 25.10 m/s2, Max.: 24.90 m/s2
-
No change
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 m/s2
During driving: Changes in proportion with vehicle acceleration/deceleration
FR Wheel Direction
Front wheel RH direction signal
Forward or Back
Forward: Forward
No change
FL Wheel Direction
Front wheel LH direction signal
Forward or Back
Forward: Forward
No change
RR Wheel Direction
Rear wheel RH direction signal
Forward or Back
Forward: Forward
No change
RL Wheel Direction
Rear wheel LH direction signal
Forward or Back
Forward: Forward
No change
*: Not equipped
CLEAR FREEZE FRAME DATA
Note:Clearing the DTC will also clear the Freeze Frame Data.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Clear the DTCs and Freeze Frame Data.
Chassis > ABS/VSC/TRC > Clear DTCs