CITROEN XSARA Technical Training Manual page 88

B - LAYOUTS
1 - EW7J4, DW10TD and TU5JPL4 engines
Key:
BSI Built-in systems interface
0004 Control panel (LEDs + microprocessor)
1220 Temperature sensor
1320 Engine management ECU
Signal type:
1 - Current depending on temperature.
2 - 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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1320
1
1220
single arrow = wire connection
triple arrow = multiplexed connection
COMPONENTS
70
2
Chapter 3
BSI
3
0004