General Information

Smart Key Unit
B160300 CAN Bus OFF - General Information



General Description

Body electrical system is consist of 9 Units IPM, M/F S/W, SMK, DDM, ADM, PSM, SCM, IMS, SWRC 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

It is impossible to communication via CAN.
As the CAN Communication error, it is occurred to the battery shorted or the ground shorted for CAN high & Low.
and then it is set The DTC of " CAN BUS off". It is used to validate wire errors.

NOTE:
To distinguish CAN error and CAN BUS off, During operating RKE Lock/Unlock of Fob key, the CAN error is set but CAN BUS off is not set.

DTC Detecting Condition