LR3/Disco 3
ANTI-THEFT ALARM SYSTEM CONTROL DIAGRAM
NOTE :
BBUS
Communication
Failure
If a response is not received on the BBUS LIN bus within 12 seconds of a status request from
the CJB, the BBUS Communication Failure fault code is set. The CJB continues trying to
communicate with the BBUS even if a communication failure has occurred.
BBUS Internal Fault
If the CJB sends a command (Arm / Disarm / Alarm / Sleep) to the BBUS, and the status from
the BBUS does not show the BBUS has responded to the command within 12 seconds, the
'BBUS Internal Fault' fault code is set.
BBUS Trigger Source
The BBUS Trigger Source stores the reason for the last BBUS sound cycle. The values which
can be stored are: 0 = Not triggered 1 = Due to power interruption 2 = Due to LIN communication
interruption 3 = Due to an external command from the CJB
Tilt Sensor Internal
Fault
If the CJB sends a command (Arm / Disarm / Sleep) to the tilt sensor in the BBUS, and the
status from the BBUS does not show the BBUS has responded to the command within 12
seconds, the 'Tilt Sensor Internal Fault' fault code is set.
Volumetric
Communication
Failure
If a 100 milliseconds pulse response is not received on the Volumetric Trigger line, within 350
milliseconds of an arm command from the CJB, the Volumetric Communication Failure fault
code is set.
A = Hardwired Connections; F = RF Transmission; N = Medium Speed CAN Bus; O = LIN Bus
