Toyota 4Runner: Freeze Frame Data
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) Whenever a DTC is stored, the skid control ECU stores the current vehicle (sensor) state as freeze frame data.
(b) The skid control ECU 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:
- If the vehicle is stopped or at a low speed (7 km/h (4 mph) or less), or if a DTC is stored, the skid control ECU will stop counting the number of times the ignition switch has been turned from off to ON.
- Freeze frame data at the time the ABS/VSC operates:
The skid control ECU stores and updates data whenever the ABS/VSC operates.
When the ECU stores data at the time a DTC is stored, the data stored during ABS/VSC operation is 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.
2. CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
(e) According to the display on the Techstream, select the trouble code data display with freeze frame data.
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 ignition switch turned to ON after storing freeze frame data/ 0 to 31 |
- |
- |
|
Stop Light SW |
Stop light switch/ ON or OFF |
ON: Brake pedal depressed OFF: Brake pedal released |
- |
|
Buzzer |
Buzzer/ ON or OFF |
ON: Buzzer on OFF: Buzzer off |
The combination meter has a built-in buzzer. |
|
Parking Brake SW |
Parking brake switch/ ON or OFF |
ON: Parking brake applied OFF: Parking brake released |
- |
|
Reservoir Warning SW |
Brake fluid level warning switch/ ON or OFF |
OFF |
- |
|
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, Fail, TSC, Sys or Non |
- |
ABS: ABS is activated. VSC: VSC is activated. TRAC: TRAC is activated. BA: BA is activated. HAB: HAB is activated. PBA: PBA is activated. PB: PB is activated. HA-CTRL: Hill-start assist control is activated. TSC: Trailer sway control is activated. Fail: Fail safe mode is activated. Sys: System prohibit is activated. Non: No operation is activated. |
|
Master Cylinder Sensor |
Master cylinder pressure sensor reading/ Min.: 0.00 V, Max.: 5.00 V |
When brake pedal released: 0.3 to 0.9 V |
The value increases when the brake pedal is depressed. |
|
M/C Sensor Grade |
Master cylinder pressure sensor change/ Min.: -30 MPa/s, Max.: 225 MPa/s |
When brake pedal released or pedal held at constant position: 0 MPa/s |
Changes in proportion with the pedal movement speed when the brake pedal is being operated. |
|
Yaw Rate Sensor |
Yaw rate and acceleration 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 |
- |
Changes in proportion with the pedal movement speed when the brake pedal is being operated. |
|
Forward and Rearward G |
Forward and backward G/ Min.: - 25.10 m/s2, Max.: 24.90 m/s2 |
- |
Changes in proportion with acceleration during acceleration/deceleration. |
|
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) |
No large fluctuations when driving at a constant speed. |
|
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) |
No large fluctuations when driving at a constant speed. |
|
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) |
No large fluctuations when driving at a constant speed. |
|
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) |
No large fluctuations when driving at a constant speed. |
|
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) |
No large fluctuations when driving at a constant speed. |
|
Vehicle Speed Grade |
Vehicle acceleration/ Min.: -25.10 m/s2, Max.: 24.90 m/s2 |
Vehicle stopped: 0 m/s2 |
Changes in proportion with the vehicle acceleration/deceleration during driving. |
|
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 % |
Throttle valve opening amount/ Min.: 0.0%, Max.: 128.0% |
When accelerator pedal released: 0% |
Changes in proportion with the movement of the pedal during accelerator pedal operation. |
|
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, TRC OFF or VSC OFF |
Normal: Normal mode TRC OFF: TRAC off mode VSC OFF: VSC off mode |
- |
3. CLEAR FREEZE FRAME DATA
NOTICE:
Clearing the DTCs will also clear the freeze frame data.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Clear the DTCs and freeze frame data (See page
.gif)
).
Dtc Check / Clear
DTC CHECK / CLEAR
1. DTC CHECK / CLEAR (when Using Techstream)
(a) Check for DTCs.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Ent ...
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DATA LIST / ACTIVE TEST
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HINT:
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