Diesel Data: Automotive Repair

General Information





Instrument Panel Module
C161600 CAN Bus Off(C-CAN) - General Information

Component Location





General Description

The controllers are mounted on the vehicle communicates others by CAN(H-CAN, C-CAN) communication way to share information and control their logic. the C-CAN communication is connected with two wires phyiscally to send information.
In order to successfully perform CAN communication, CLU and EMS ECU(PCM) are equipped with an internal 120Ohms termination resistor. IPM sets the DTC related to CAN Communication when the CAN communication does not fail by any cause.




IPM: Intelligent integrated Platform Module SMK: Smart Key DDM: Driver Door Module ADM: Assistant Door Module PSM: Power Seat Module MFSW: Multi-Function Switch SWRC: Steering Wheel Remote Controller IMS SW:Integrated Memory System Switch SCM: Steering Column Module PCU: Power-train Control Unit ECU: Engine Control Unit EPB: Electronic Parking Brake ABS: Anti-lock Brake System ESC: Electronic Stability Control SCC: Smart Cruise Control CLUM: Cluster Module DATC: Dual Automatic Temp. Control SCC: Smart Cruise Control MDPS: Motor Driven Power Steering SAS: Steering Angle Sensor TPMS: Tire Pressure Monitoring System SRSCM: Supplemental Restraints System Control Module HU: Head Unit RRC: Rear Remote Control AMP: Amplifier

DTC Description

This is DTC which is related with communication error between IPM and C CAN other units.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram










Signal Waveform & Data








Fig.1) C_CAN Low/High Signal Waveform
Fig.2) C_CAN BUS Voltage Level (High Speed CAN)