DESCRIPTION
Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior.
The number of possible stored Freeze Frame Data sets, whether multi Freeze Frame Data is available, the number of freeze frame points, Freeze Frame Data items, the ECU internal range, etc., is different depending on the stored group.
The stored data items for Vehicle Control History Freeze Frame Data are different depending on the stored group. When the value of a data item does not change across all points, only the value of the detection point will be displayed. The contents of the Freeze Frame Data is almost the same as that of the Data List.
PRECAUTIONS
As Vehicle Control History may be overwritten whenever the trigger conditions are met, make sure to save Vehicle Control History before performing any inspections.
As Vehicle Control History may be stored when performing an Active Test, learning, etc., make sure to clear the Vehicle Control History before returning the vehicle to the customer.
CLEAR VEHICLE CONTROL HISTORY
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB) (Clear).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
By performing this procedure, all stored Vehicle Control History items will be cleared.
CHECK VEHICLE CONTROL HISTORY (CHARGING SYSTEM)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Code | Tester Display | Measurement Item | Diagnostic Note |
|---|---|---|---|
| X0600 | Auxiliary Battery Voltage Low at Start | History of low battery voltage at engine control system start | - |
| X0601 | Auxiliary Battery Voltage Low at IG OFF | History of low battery voltage when ignition switch off | - |
| X0602 | Auxiliary Battery Discharge at IG OFF | History of battery becoming discharged when ignition switch off | - |
| X0603 | Auxiliary Battery Discharge at Running | History of battery becoming discharged while vehicle being driven | - |
VEHICLE CONTROL HISTORY FREEZE FRAME DATA (CHARGING SYSTEM)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Select a Vehicle Control History item to access the applicable Freeze Frame Data.
Check the Freeze Frame Data recorded with the Vehicle Control History.
| GTS Display | Description |
|---|---|
| Total Distance Traveled | Driving distance |
| Total Distance Traveled - Unit | Unit of driving distance |
| Initial Engine Battery Minimum Voltage | Minimum voltage at engine start |
| Alternator Voltage - Non Active Test | Requested voltage when the regulator forced operation is not executed |
| Alternator Output Duty Ratio | LIN terminal output (power generation rate) |
| Auxiliary Battery Voltage | Battery voltage
(+B1, +B2 terminal) |
| Auxiliary Battery Integrated Current | Battery capacity taking into account battery deterioration. |
| Smoothed Value of Auxiliary Battery Temperature | Calculated battery fluid temperature by battery state sensor assembly |
| Auxiliary Battery Charge Rate | Battery charge percentage calculated by battery state sensor assembly |
| Auxiliary Battery Charging Rate Accuracy | Accuracy of battery charge percentage calculated by battery state sensor assembly |
| Auxiliary Battery Charging Capacity | Charge of battery calculated by battery state sensor assembly |
| Charging Control Mode | Charging control state |
| Average Vehicle Speed during Trip | Average vehicle speed after engine started during current trip |
| Auxiliary Battery Integrated Current during Trip | Integrated current of battery detected by battery state sensor assembly during current trip |
| Auxiliary Battery Charging Integrated Current when Trip before Last | Integrated current charged during the previous trip |
| Auxiliary Battery Discharging Integrated Current when Trip before Last | Integrated current discharged during the previous trip |
| Auxiliary Battery Capacity after IG ON | Battery capacity immediately after ignition switch to ON |
| Auxiliary Battery Capacity after IG OFF | Battery capacity immediately after ignition switch is off |
| Estimated Open Ended Auxiliary Battery Voltage when IG OFF | Estimated battery release voltage calculated when ignition switch is off by the battery state sensor assembly |
| Auxiliary Battery Average Current during IG OFF | Average current while parked (average value of current consumed from when the ignition switch is off until lit is to ON) |
| IG OFF Time just before IG ON | Parking duration (duration from when the ignition switch is off until it is to ON) |
| Auxiliary Battery Average Current when Auxiliary Battery Voltage Low (during IG OFF) | Average current when system judges that voltage is low while parked (average current value when the ignition switch is off until the system judges the voltage is low while parked) |
| IG OFF Time when Auxiliary Battery Voltage Low (during IG OFF) | Parking duration when system judges that voltage is low while parked (duration from when the ignition switch is off until the system judges the voltage is low while parked) |
| Elapsed Time during Auxiliary Battery Voltage Low | Elapsed time that battery voltage detected by battery state sensor assembly was below threshold |
| Average Engine Speed | Average engine speed after engine starts during the current trip |
VEHICLE CONTROL HISTORY (AIRBAG SYSTEM)
A part of the control history can be confirmed using the Vehicle Control History.