Citroën Picasso Xsara Technical Training Multiplexed BSI Manual

175
Chapter 1
TRANSPONDER SYSTEM OPERATING PRINCIPLE
I -
FOREWORD
The role of this function is to protect the vehicle:
•
by  electronically  locking  the  engine  management  ECU  -  on petrol   and HDi
engines,
•
by electronically locking the diesel pump electrovalve - on XUD engines.
The system consists of:
•
•
•
•
an analogue unit located in the top of the ignition switch,
a responder label located in the ignition key,
a Built-in Systems Interface (BSI) which authorises unlocking or not,
an  engine  management  ECU  or  a  diesel  pump  electrovalve  (depending  on
engine),
•
a Multifunction Screen (MFS) for displaying messages (XSARA PICASSO only).
Note:  For  simplification purposes,  only petrol  and HDI engines  are dealt  with as
the general operation is the same for XUD engines.
MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9
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CategoriesCitroën Manuals, Citroën Picasso Manuals, Citroën Xsara Manuals
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