The HECU checks the CAN communcation lines for normal control and if a 4WD's message is not received for a certain period, this DTC is set.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
CAN message monitoring | 1. Faulty 4WD ECU 2. Open in CAN communication line 3. Poor connection 4. Other ECUs incorrectly occupy the CAN bus |
Enable Conditions |
•
In case that 4WD message was not received for more than specific time ※ Specific time : Control in progress = 0.5sec. : No control = 1.5sec. | |
MIL |
•
No MIL | |
Reset Condition |
•
Normal after IG turned on again. |
