Citroën Picasso Xsara Technical Training Multiplexed BSI Manual

70
Chapter 3
B -  LAYOUTS
1
-  EW7J4, DW10TD and TU5JPL4 engines
2
BSI
1320
1
3
1220
0004
Key:
single arrow = wire connection
triple arrow = multiplexed connection
COMPONENTS
BSI   Built-in systems interface
0004
1220
1320
Control panel (LEDs + microprocessor)
Temperature sensor
Engine management ECU
Signal type:
1
2
-  Current depending on temperature.
-  Square  signal (PWM)  for  the temperature  and  All or  nothing  for the
warning.
3
-  VAN  frame   containing  the   temperature  and  possibly   the  warning
information.
MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 4
©
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