FREEZE FRAME DATA
FREEZE FRAME DATA
(a) 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.
(b) 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.
HINT:
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.
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
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Trouble Codes.
Chassis > ABS/VSC/TRAC/EPB > Trouble Codes(f) Select a DTC to display its Freeze Frame Data.
Chassis > ABS/VSC/TRAC/EPB
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|---|
Elapsed Time after Freeze Trigger |
Elapsed time after freeze trigger |
Min.: 0 msec, Max.: 510 msec |
- |
- |
Number of IG ON |
Number of times ignition switch turned to ON after Freeze Frame Data stored |
0 to 31 |
- |
- |
Buzzer |
Meter buzzer |
ON or OFF |
OFF: Buzzer off |
No change |
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 |
- |
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 |
Non, ABS, VSC, TRAC, BA, HAB, Fail, PBA, PB, HA-CTRL, TSC, MCB, Sys |
Actual operated system |
Non: No operation is activated. ABS: ABS is activated. VSC: VSC is activated. TRAC: TRAC is activated. BA: BA is activated. HAB: HAB is activated.* Fail: Fail safe mode is activated. PBA: PBA is activated. PB: PB is activated.* HA-CTRL: Hill-start assist control is activated. TSC: Trailer sway control activated* MCB: SCB is activated.* Sys: System prohibit is activated. |
Master Cylinder Sensor |
Master cylinder pressure sensor reading |
Min.: 0.00 V, Max.: 5.00 V |
Brake pedal released: 0.20 to 0.40 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 the 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 m/s2 |
During driving: Changes in proportion with vehicle acceleration/deceleration |
FR Wheel Direction |
Front wheel RH direction signal |
Forward or Back |
Forward: Forward Back: Backward |
- |
FL Wheel Direction |
Front wheel LH direction signal |
Forward or Back |
Forward: Forward Back: Backward |
- |
RR Wheel Direction |
Rear wheel RH direction signal |
Forward or Back |
Forward: Forward Back: Backward |
- |
RL Wheel Direction |
Rear wheel LH direction signal |
Forward or Back |
Forward: Forward Back: Backward |
- |
Real Engine Torque |
Actual engine torque |
Min.: -1024.0 Nm, Max.: 1023.0 Nm |
- |
- |
Accelerator Opening Angle % |
Percentage of accelerator pedal opening angle |
Min.: 0.0%, Max.: 127.5% |
The accelerator pedal released: 0% |
During accelerator pedal operation: Changes in proportion with the pedal movement |
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° |
Left turn: Increase Right turn: Decrease |
- |
TRAC/VSC Off Mode |
TRAC/VSC off mode |
Normal, TRAC OFF, VSC Expert Mode, VSC OFF |
Normal: Normal mode TRAC OFF: TRAC off mode VSC OFF: VSC off mode |
- |
Vehicle Speed (Control Value) |
Vehicle speed (control value) |
Min.: 0.0 km/h (0.0 MPH) Max.: 326.4 km/h (202.8 MPH) |
- |
- |
ECU +B1 Voltage |
skid control ECU (brake actuator assembly) +B1 voltage |
0.00 to 20.00 V |
11 to 14 V |
- |
RH Actuator Motor Input Voltage |
Parking brake motor RH (parking brake actuator assembly RH) input voltage |
0.00 to 20.00 V |
- |
- |
RH Actuator Motor +Terminal Voltage |
Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage |
0.00 to 20.00 V |
- |
- |
RH Actuator Motor -Terminal Voltage |
Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage |
0.00 to 20.00 V |
- |
- |
LH Actuator Motor Input Voltage |
Parking brake motor LH (parking brake actuator assembly LH) input voltage |
0.00 to 20.00 V |
- |
- |
LH Actuator Motor +Terminal Voltage |
Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage |
0.00 to 20.00 V |
- |
- |
LH Actuator Motor -Terminal Voltage |
Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage |
0.00 to 20.00 V |
- |
- |
EPB Switch |
Electric parking brake switch assembly input |
OFF, Lock, Release or Unknown |
OFF: Lock switch and release switch are off Lock: Lock switch on Release: Release switch on |
When not normal, electric parking brake switch assembly release side system may be malfunctioning HINT: EPB stands for electric parking brake. |
Auto Mode Request |
Auto mode request status |
OFF or ON |
- |
- |
Shift Position |
Position of shift lever |
P, N, R, D or Unknown |
P: Shift lever in P N: Shift lever in N R: Shift lever in R D: Shift lever in D or M |
- |
IG Switch |
IG power source status |
OFF or ON |
OFF: IG power source voltage is not input to skid control ECU (brake actuator assembly) ON: IG power source voltage is input to skid control ECU (brake actuator assembly) |
- |
Brake Hold Ready |
Brake hold control permission status |
OFF or ON |
- |
- |
Brake Hold Control Mode |
Brake hold control mode |
OFF, ON, Release or EPB |
OFF: Brake hold control is not operating ON: Brake hold control is operating Release: Brake hold control is released EPB: Parking brake is locked during brake hold control |
HINT: EPB stands for electric parking brake. |
RH Actuator Current Status |
Parking brake actuator assembly RH monitoring current condition |
Inval or Valid |
Valid |
- |
LH Actuator Current Status |
Parking brake actuator assembly LH monitoring current condition |
Inval or Valid |
Valid |
- |
RH Actuator Nut Stroke |
Parking brake actuator assembly RH nut stroke value |
0.000 to 8.160 mm (0 to 0.321 in.) |
- |
- |
LH Actuator Nut Stroke |
Parking brake actuator assembly LH nut stroke value |
0.000 to 8.160 mm (0 to 0.321 in.) |
- |
- |
RH Actuator Motor Actual Current |
Parking brake motor RH (parking brake actuator assembly RH) current value |
-5.0362 to 50.5000 A |
- |
- |
RH Actuator 0 load Current |
Parking brake motor RH (parking brake actuator assembly RH) current calibration value |
-5.0362 to 50.5000 A |
- |
- |
LH Actuator Motor Actual Current |
Parking brake motor LH (parking brake actuator assembly LH) current value |
-5.0362 to 50.5000 A |
- |
- |
LH Actuator 0 load Current |
Parking brake motor LH (parking brake actuator assembly LH) current value |
-5.0362 to 50.5000 A |
- |
- |
Counter of IG ON After EPB Control Cancel |
Number of times the ignition switch was turned to ON after EPB control was cancelled |
0 to 255 Times |
- |
- |
RH Actuator Status |
Parking brake actuator assembly RH condition |
Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control |
- |
- |
LH Actuator Status |
Parking brake actuator assembly LH condition |
Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control |
- |
- |
Detailed Freeze DTC |
Number of detailed freeze DTCs |
0 to 65535 |
- |
- |
RH Actuator Motor Gradient Current |
Parking brake motor RH (parking brake actuator assembly RH) current gradient |
-5.0362 to 50.5000 A |
- |
- |
LH Actuator Motor Gradient Current |
Parking brake motor LH (parking brake actuator assembly LH) current gradient |
-5.0362 to 50.5000 A |
- |
- |
RH Actuator Motor Relay1 |
Parking brake motor relay 1 RH condition |
OFF or ON |
- |
- |
RH Actuator Motor Relay2 |
Parking brake motor relay 2 RH condition |
OFF or ON |
- |
- |
RH Actuator Motor Relay3 |
Parking brake motor relay 3 RH condition |
OFF or ON |
- |
- |
RH Actuator Motor Relay4 |
Parking brake motor relay 4 RH condition |
OFF or ON |
- |
- |
LH Actuator Motor Relay1 |
Parking brake motor relay 1 LH condition |
OFF or ON |
- |
- |
LH Actuator Motor Relay2 |
Parking brake motor relay 2 LH condition |
OFF or ON |
- |
- |
LH Actuator Motor Relay3 |
Parking brake motor relay 3 LH condition |
OFF or ON |
- |
- |
LH Actuator Motor Relay4 |
Parking brake motor relay 4 LH condition |
OFF or ON |
- |
- |
RH Actuator Motor Current High |
Parking brake motor RH (parking brake actuator assembly RH) overcurrent |
OFF or ON |
- |
- |
RH Actuator Motor Driver Operation Status |
Parking brake motor RH (parking brake actuator assembly RH) driver status |
OK or NG |
- |
- |
LH Actuator Motor Current High |
Parking brake motor LH (parking brake actuator assembly LH) overcurrent status |
OFF or ON |
- |
- |
LH Actuator Motor Driver Operation Status |
Parking brake motor LH (parking brake actuator assembly LH) driver status |
OK or NG |
- |
- |
*: Not equipped
CLEAR FREEZE FRAME DATA
NOTICE:
Clearing the DTCs will also clear the Freeze Frame Data.
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Clear the DTCs and Freeze Frame Data.
Click here
Chassis > ABS/VSC/TRAC/EPB > Clear DTCsToyota CH-R Service Manual > Repair Instruction: Precaution
PRECAUTION
BASIC REPAIR HINT
(a) HINTS ON OPERATIONS
1
Attire
Always wear a clean uniform.
A hat and safety shoes must be worn.
2
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REMOVAL
PROCEDURE
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...