DTC Information: DTC Detecting Condition

Item		Detecting Condition	Possible Cause
DTC Strategy		CAN signal monitoring	Poor connection CAN communication circuit (open, short) CAN high line open CAN low line open CAN high and low line open CAN high line short to 12V battery CAN low line short to 12V battery CAN high, low line short to each other CAN high, low line short to each other and short to ground Terminating resistance fault Transmitting controller bus off Transmitting controller disconnected Transmitting controller power, fuse or ground fault Transmitting controller H/W, S/W fault CAN line noise IBU fault (CAN module fault) CAUTION: * Do not replace the FR_CMR due to a history fault.
Enable Condition		Engine "ON", signal received from EMS (more than 2s) Ignition "ON" (more than 2s) 12V battery voltage is between 9V and 16V Variant coding complete CAN communication line normal
Threshold Value		IBU CAN message is not received
Detecting Time		2s
Symptom	Case 1	FCA, LKA, ISLW, ISLA, DAW, HBA, LFA, HDA disabled Warning lamp turns on
Symptom	Case 2	HBA disabled
Service Lamp OFF Condition		When receiving IBU CAN messages