Component Location
General Description

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.

DTC Description

This code is outputted when IPM can't receive data from PDM by CAN Line for 10 sec.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

CAN Comm. Check (IPM ↔ PDM)

Check PDM connection

Check fuse related PDM

Check open in CAN high/low circuit of PDM

Check open in CAN high/low circuit of CLU

Enable Conditions

IPM power on

Threshold Value

No message from CLU to IPM for 10 sec.

Diagnostic Time

10 sec

DTC Erasing Time

DTC is erased immediately after receiving data from PDM.

Diagnostic Circuit Diagram
Signal Waveform & Data

Fig 1) Signal waveform of CAN Low and HIGH

Fig 2) CAN BUS VOLTAGE LEVEL (LOW SPEED CAN)

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