General Information

Smart Key Unit
B1602 CAN Error - General Information

Component Inspection





General Description

Body electrical system is consist of 3 Units BCM(Body Control Module), SMK(Smart Key Control Module), SJB(Smart Junction Box) constructing the Body Wiring system is connected to BODY CAN*.
* CAN (Controller Area Network): CAN is serial bus communication type which links not only communication system but also control units each other.






DTC Description

DTC is set if SMK unit detects that CAN HIGH or CAN LOW is short to battery, short to ground, open and short between CAN High and CAN Low each other.
Check wirings if the DTC is set.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data