General Information

Smart Key Unit
B1602 CAN Error - General Information

Component Location





General Description

Each control module such as BCM(Body Control Module), Cluster(CLU:Cluster), SMK(Smartkey Module), SJB(Smart Junction Box), PSM(Power Seat Module) is connected each other with Body CAN*. Each Control Unit(Module) consists of Low and High Line.
* 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 B1602 is set if Smartkey Module 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.

DTC Detecting Condition





Diagnostic Circuit Diagram










Signal Waveform & Data