General Information

Smart Key Unit
B1602 CAN Error - General Information

Component Inspection




1. Smartkey Module
2. BCM

General Description

CAN Communication is a circuit, consists of CAN LOW and CAN HIGH, in order to communicate among control units.

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