This is DTC which is related with communication error between IPM and other units.
(※ Control Units : IPM(Inter Panel Module), FAM(Front Area Module), PDM(Power Distribution Module), DDM(Drive Door Module), ADM(Assist Door Module), CLU(Cluster), PSM(Power Seat Module), SCM(Steering Control Module), RAM(Rear Area Module), SMK(Smart Key)
*¹ CAN (Controller Area Network) : CAN is serial bus communication type which links not only communication system but also control units each other.
*² LIN (Local Interconnect Network) : LIN is serial communication type which is used in electrical control system.
If FAM or RAM are missing on the CAN Line or it is impossible to communicate via CAN because of faulty IPM, FAM or RAM, IPM sets This DTC.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check Network status |
•
Check CAN Line
•
Check operation of FAM, IPM, RAM |
Enable Conditions |
•
IGN ON | |
Threshold Value |
•
Detected RF Module is installed that frequency is different from local frequency | |
Diagnostic Time |
•
Immediately | |
DTC Erasing Time |
•
DTC is erased immediately after trouble fixed (In case of the past error, perform DTC erasing procedure.) |
Fig 1) Signal waveform of CAN Low and HIGH
Fig 2) CAN BUS VOLTAGE LEVEL (LOW SPEED CAN)
