A failure is detected if the IMU message was not received or the HECU detects the sensor CAN Bus off state in CAN bus which is used for communication with IMU for more than the specified failure detection time.
Item | Detecting Condition | Possible cause | |
Case 1 | DTC Strategy |
•
CAN message (Yaw reate sensor/Lateral G sensor) monitoring | 1. Poor connection 2. Faulty IMU 3. Open or short in CAN lines |
Monitoring Period |
•
The monitoring starts 1.5sec after power up | ||
Enable Conditions |
•
In case that sensor message was not received for more than 1sec after receiving sensor reset bit more than 3 times. | ||
Fail Safe |
•
4WD: Inhibit the ABS/ESP(ESC)/DBC/AVH control and allow the EBD control.
•
2WD: Inhibit the ESP(ESC)/DBC/AVH control. | ||
MIL |
•
4WD: The ABS/ESP(ESC)/DBC/AVH warning lamp is activated.
•
2WD: the ESP(ESC)/DBC warning lamp is activated. | ||
Case 2 | DTC Strategy |
•
CAN message (Longitudinal G sensor) monitoring | |
Monitoring Period |
•
The monitoring starts 1.5sec after power up | ||
Enable Conditions |
•
In case that sensor message was not received for more than 1sec after receiving sensor reset bit more than 3 times. | ||
Fail Safe |
•
4WD: Inhibit the ABS/ESP(ESC)/DBC/AVH control and allow the EBD control.
•
2WD: Inhibit the DBC control. | ||
MIL |
•
4WD: The ABS/ESP(ESC)/DBC/AVH warning lamp is activated.
•
2WD: the ESP(ESC) warning lamp is activated. (In case DBC w/lamp exists, the DBC warning lamp is activated) | ||
Reset Condition |
•
Normal after IG turned on again | ||
