POWER ASSIST SYSTEMS POWER STEERING SYSTEM VEHICLE CONTROL HISTORY
DESCRIPTION
Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior.
It may be possible to determine the cause of the malfunction by checking the vehicle history information and freeze frame data.
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.
CHECK VEHICLE CONTROL HISTORY
Using the GTS, check the vehicle control history (RoB).
- Chassis > EMPS > Utility
-
Tester Display Vehicle Control History (RoB) - 50005 405 55
| FFD Group | Code | Tester Display | Measurement Item | EPS Warning Light | Diagnostic Note |
|---|---|---|---|---|---|
| - | X200C | Vehicle Speed Signal Invalidity | ·
Record of vehicle speed signal invalid history updates ·
Record of vehicle speed signal invalid history updates (only when CAN vehicle speed (SP1) is disabled) |
Yellow illuminated | - |
| - | X206D | Power Source Stop | Record of engine stall/shutdown control history updates | Yellow illuminated | - |
| - | X206E | High Load Continuation | Record of high load continuous control history updates | Does not come on | - |
| - | X206F | Prevention of ECU/Motor Overheat | Record of overheat prevention control history updates | Does not come on | - |
| - | X208F | Battery Voltage Drop | Record of power source voltage drop control history updates | Red illuminated | - |
·
Record of power source voltage drop suppression control history updates ·
Record of low battery voltage history updates |
Yellow illuminated | - | |||
·
Record of load control history updates ·
Record of chassis power management EPS control history updates |
Does not come on | - | |||
| - | X2600 | Software Incompatibility with ENG/HV Control Module (Not Programmed) | When gasoline model or HV model information has not been written | Red illuminated | - |
| - | X2601 | Software Inconsistency with ENG/HV Control Module | ·
Record of when assist map has not been written ·
Record of when assist map identification malfunction is detected ·
Record of when gasoline model or HV model identification malfunction is detected |
Does not come on | - |
| - | X2603 | Software Inconsistency with Body Control Module | ·
Record of when assist map has not been written ·
Record of when assist map identification malfunction is detected |
Does not come on | - |
| - | X2605 | Software Inconsistency with Brake Control Module | ·
Record of when assist map has not been written ·
Record of when assist map identification malfunction is detected |
Does not come on | - |
| - | X2606 | Software Inconsistency with Suspension Control Module | ·
Record of when assist map has not been written ·
Record of when assist map identification malfunction is detected |
Does not come on | - |
| - | X2610 | Torque Sensor Missing Calibration of Adjustment Value Non-Memory | Record of when zero point calibration of the torque sensor is not performed | Red illuminated | - |
| - | X2611 | Torque Sensor Missing Calibration of Adjustment Incomplete | Record of when zero point calibration of the torque sensor is incomplete | Red illuminated | - |
| - | X2612 | Assist Map Non-Memory | Record of when assist map has not been written | Red illuminated | - |
| - | XF01B | ECU Security Key Not Registered | ECU security key not updated | Does not come on | ( 202405,999999,_V1,_083041,_0402305,RM100000002ISNL,)
|
CLEAR VEHICLE CONTROL HISTORY
Using the GTS, display the vehicle control history (RoB).
- Chassis > EMPS > Utility
-
Tester Display Vehicle Control History (RoB) - 50005 405 55
Select the clear button and follow the instructions on the screen to clear the vehicle control history.
- NOTICE:
-
When the vehicle control history is cleared, all the stored history items are cleared.