| Last Modified: 11-27-2007 | 1.6 D | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001DX200LX |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: FREEZE FRAME DATA (2008 LX570) | ||
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) If a DTC is stored when the brake control system 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 brake control system was activated.
HINT:
- The skid control ECU will not count the number of times the engine switch is turned on (IG) if the vehicle does not drive at a speed of at least 7 km/h (4.3 mph) or a DTC is stored.
- Freeze frame data at the time the brake control system operates: The skid control ECU stores and updates the data whenever the brake control system operates. When the ECU stores data at the time a DTC is stored, the data stored when the brake control system operated may be cleared.
- Freeze frame data at the time a DTC is stored: When the skid control ECU stores data at the time a DTC is stored, no updates will be performed until the data is cleared.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / ABS History.
(f) On the Techstream display, select the freeze frame data.
ABS History
|
Tester Display |
Measurement Item |
Reference Value |
|---|---|---|
|
Elapsed Time after Freeze Trigger |
Elapsed time after freeze trigger |
Min.: 0 ms Max.: 500 ms |
|
Number of IG ON |
Number of operations of engine switch on (IG) after storing freeze frame data |
0 to 31 |
|
Buzzer |
Skid control buzzer signal |
Skid control buzzer on: ON, off: OFF |
|
Stop Lamp SW |
Stop light switch signal |
Stop light switch on: ON, off: OFF |
|
Parking Brake SW |
Parking brake switch signal |
Parking brake switch on: ON, off: OFF |
|
Reservoir Warning SW |
Brake fluid level warning switch signal |
Brake fluid level warning switch on: ON, off: OFF |
|
Gear Position |
Gear position information |
FAIL 1st 2nd 3rd 4th 5th 6th P, N R NOT R |
|
Shift Lever Position |
Shift lever position information |
FAIL 1st 2nd 3rd 4th 5th 6th/B D/M P, N R |
|
Operated System |
Operated system status |
ABS: ABS activated VSC: VSC activated TRC: A-TRAC activated BA: BA activated HAB: HAB activated FAIL: Fail-safe mode activated PBA: PBA activated PB: PB activated HA-CTRL: Hill-start assist control activated SYS: System prohibited NON: No system activated |
|
Master Cylinder Sensor |
Master cylinder pressure sensor reading |
Min.: 0 V Max.: 5 V |
|
M/C Sensor Grade |
Master cylinder pressure sensor change |
Min.: -30 MPa/s., Max.: 225 MPa/s |
|
Yaw Rate Sensor |
Yaw rate sensor reading |
Min.: -128 deg/s, Max.: 127 deg/s |
|
Lateral G |
Lateral G |
Min.: -25.11 m/s2, Max.: 24.91 m/s2 |
|
Forward and Rearward G |
Forward and rearward G |
Min.: -25.11 m/s2, Max.: 24.91 m/s2 |
|
FR Wheel Speed |
Front right wheel speed reading |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) |
|
FL Wheel Speed |
Front left wheel speed reading |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) |
|
RR Wheel Speed |
Rear right wheel speed reading |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) |
|
RL Wheel Speed |
Rear left wheel speed reading |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) |
|
Vehicle Speed |
Vehicle speed reading |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph) |
|
Vehicle Speed Grade |
Vehicle speed grade reading |
Min.: -25.11 m/s2, Max.: 24.91 m/s2 |
|
FR Wheel Direction |
Front right wheel direction signal |
Front right wheel direction FORWARD: Forward, BACK: Back |
|
FL Wheel Direction |
Front left wheel direction signal |
Front left wheel direction FORWARD: Forward, BACK: Back |
|
RR Wheel Direction |
Rear right wheel direction signal |
Rear right wheel direction FORWARD: Forward, BACK: Back |
|
RL Wheel Direction |
Rear left wheel direction signal |
Rear left wheel direction FORWARD: Forward, BACK: Back |
|
Real Engine Torque |
Real engine torque |
Min.: -1024 N*m, Max.: 1023 N*m |
|
Accelerator Opening Angle % |
Accelerator opening angle percentage |
Min.: 0%, Max.: 128% |
|
Steering Angle Sensor |
Steering angle sensor reading |
Min.: -3276.8 deg Max.: 3276.7 deg |
|
Pre Crash Brake OFF Switch |
- |
OFF |
|
TRAC/VSC Off Mode |
TRAC/VSC Off Mode |
Normal: Normal mode TRAC OFF: TRAC OFF mode VSC OFF: VSC OFF mode |
|
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