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 to the communication error between the BCM and other units.
** Body CAN communication Control Units : BCM (Body Control Module), CLU (Cluster), PDM (Power Distribution Module), 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.






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)