163
Chapter 2
E - ENGINE COOLANT TEMPERATURE COMPRESSOR CONTROL
If the engine coolant temperature is too high, compressor operation is
controlled by the BSI.
The compressor is forbidden for a coolant temperature above 112°C.
It is authorised to re-engage if the coolant temperature is below 109°C and if
the previous cut-off due to coolant temperature was more than one minute
ago.
Example: coolant temperature as a function of time.
max +
max -
1
2
3
4
5
KEY
max + Coolant temperature = 112°
max - Coolant temperature = 109°
Compressor forbidden.
1
2
3
The compressor is engaged.
The maximum temperature has been exceeded: the compressor is cut off
The compressor is re-engaged as the temperature is valid after the one minute
timer.
4
5
The maximum temperature has once again been exceeded: the compressor is
cut off.
The compressor is re-engaged when the temperature returns to normal after
more than one minute.
MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8
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