General Information

Body Control Module
B1690 CAN timeout between IPM and SJB - General Information

Component Location





General Description

This is DTC which is related with communication error between BCM and other units.
** Body CAN communication Control Units : BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box).
* 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. (This is less expensive.)






DTC Description

This code is outputted when BCM can't receive data from SJB by CAN Line for 6 sec.

DTC Detecting Condition





Diagnostic Circuit Diagram










Signal Waveform & Data








Fig 1) CAN Low/High Signal Waveform
Fig 2) CAN BUS VOLTAGE LEVEL (LOW SPEED CAN)