Check Of Freeze Frame Data
The freeze frame data can be checked by using the scan tool (M.U.T.-III).
When detecting fault and storing the DTC, the ECU connected to CAN bus line obtains the data before the determination of the DTC and the data when the DTC is determined, and then stores the ECU status of that time. By analyzing each data from scan tool (M.U.T.-III), the troubleshooting can be performed more efficiently. The displayed items are as the table below.
Display item list
DISPLAY ITEM LIST
| Item No. | Item name | Data item | Unit |
|---|---|---|---|
| 1 | Odometer | Total driving distance at the first time a DTC has been set | km (mile) |
| 2 | Odometer (Last time fail detect.) | Total driving distance at the last time a DTC has been set | km (mile) |
| 3 | Detection counter | Number of set DTCs | Number of counts |
| 4 | Ignition cycle | Number of times the ignition switch is turned "ON" or "LOCK (OFF)" after the past failure transition | Number of counts |
| 5 | ECU power supply voltage | Voltage of power supply when the DTC is generated | V |
| 6 | ECU temperature | FCM/LDW/AHB-ECU temperature at the time a DTC has been set | °C (°F) |
| 7 | Outside temperature | Ambient temperature at the time a DTC has been set | °C (°F) |
| 8 | Steering wheel angle | Steering angle of steering wheel sensor when the DTC is generated | deg |
| 9 | Accelerator pedal position | Accelerator pedal position when the DTC is generated | % |
| 10 | Yaw rate | Yaw rate of G and yaw rate sensor when the DTC is generated | deg/s |
| 11 | AS&G status | Auto Stop & Go (AS&G) system when the DTC is generated: Not active/Idle stop/Auto start/- | - |
| 12 | A.S.C. status | ASC control when the DTC is generated: A.S.C. ON/A.S.C. OFF/Not defined/A.S.C. fail | - |
| 13 | Master cylinder pressure | Master cylinder pressure of Master cylinder pressure sensor when the DTC is generated | MPa |
| 14 | Longitudinal G | Longitudinal G of G and yaw rate sensor when the DTC is generated | m/s2 |
| 15 | Lateral G | Lateral G of G and yaw rate sensor when the DTC is generated | m/s2 |
| 16 | Vehicle speed | Vehicle speed when the DTC is generated | km/h (mph) |
| 17 | FCM function | FCM function when the DTC is generated: OFF/ON | - |
| 18 | Camera/LaserRadar blockage state | Blockage state when the DTC is generated: Normal/Blocked | - |
| 19 | FCM auto brake request | FCM auto break when the DTC is generated: OFF/ON | - |
| 20 | FCM target deceleration | FCM target deceleration when the DTC is generated | m/s2 |
| 21 | FCM brake prefill request | FCM brake prefill request when the DTC is generated: OFF/ON | - |
| 22 | FCM brake assist request | FCM brake assist request when the DTC is generated: OFF/ON | - |
| 23 | FCM engine brake request | FCM engine brake request when the DTC is generated: OFF/ON | - |
| 24 | FCM standstill request | FCM standstill request when the DTC is generated: OFF/ON | - |
| 25 | LDW function | LDW function when the DTC is generated: "OFF/Fail"/ON/Standby/Warning | - |
| 26 | Brake switch | Brake switch when the DTC is generated: OFF/ON | - |
| 27 | Ignition/Electric motor switch | Ignition switch when the DTC is generated: Lock/ACC/ON/Start | - |