Freeze Frame Data
- FREEZE FRAME DATA
HINT:
- Whenever a DTC is detected or the ABS 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 ignition switch has been turned from off to the on (IG) since the last time the ABS was activated. However, if the vehicle is stopped or at low speed (4.3 mph (7 km/h) or less), or if a DTC is detected, the skid control ECU will stop counting the number.
- Freeze frame data at the time the ABS operates: The skid control ECU stores and updates data whenever the ABS system operates.
When the ECU stores data at the time a DTC is detected, the data stored during ABS operation is erased.
- Freeze frame data at the time a DTC is detected:
When the skid control ECU stores data at the time a DTC is detected, no updates will be performed until the data is cleared.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch on (IG).
- Select "DTC INFO" on the tester display.
- On the DTC data display screen, select the DTC data displayed with "STAR".
MEASUREMENT ITEM
| Intelligent tester display | Measurement Item | Reference Value |
|---|---|---|
| TROUBLE CODE | Freeze DTC | 0 to 255 |
| SHIFT POSITION | Shift lever position | FAIL P, N R D 4 3 2 L |
| STOP LIGHT SW | Stop light switch signal | Stop light switch ON: ON, OFF: OFF |
| SYSTEM | System status | ABS activated: ABS VSC/TRC activated: VSC (TRC) BA activated: BA Fail safe mode activated: FAIL SF No system activated: NO SYS |
| #IG ON | Number of operation of ignition switch ON after storing freeze frame data | 0 to 31 |
| VEHICLE SPD | Wheel speed sensor reading | Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h) |
| STEERING ANG | Steering sensor reading | Min.: -1152 deg, Max.: 1143 deg |
| YAW RATE | Yaw rate angle sensor reading | Min.: -128 deg/s, Max.: 127 deg/s |
| MAS CYL PRESS | Master cylinder pressure sensor reading | Brake pedal release : 0.3 to 0.9 V Brake pedal depress : 0.8 to 4.5 V |
| MAS PRESS GRADE | Master cylinder pressure sensor change | Min.: -30 MPa/s, Max.: 225 MPa/s |
| G (RIGHT & LEFT) | Right and Left G | Min.:-1.859 G, Max.: 1.859 G |
| G (BACK & FORTH) | Back and forth G | Min.:-1.859 G, Max.: 1.859 G |
| PKB SW | Parking brake switch condition | Parking brake switch ON: ON, OFF: OFF |
| #CODES | Number of trouble codes | 0 to 255 |