Dacia Solenza 2004, Repair Manual

Page: 105 / 891

IGNITION AND INJECTION
17
17 - 11
AIR CONDITIONING UNIT IS USING A COMPRESSOR
WITH VARIABLE DISPLACEMENT
The connections injection/air conditioning, are the followings:
-
pin 46
of the injection computer is receiving the information “ air conditioning
request” further to the air conditioning switch acting;
-
pin 10
of the injection computer will transmit the coupling control of the air
conditioning compressor by means of the “A” relay, if the coupling authorization conditions are
accomplished.
The information “power absorbed by compressor” displayed when performing diagnostic by
means of the CLIP tester, is related to the couple value taken by the compressor. This is of 300-
5000W, the minimal displayed value being of 300 W, regardless the compressor coupled / uncoupled
condition.
The injection computer is forbidding the compressor coupling in the following situations:
- at less than 16 seconds from engine starting;
- subject to the power requested to the engine by the vehicle driver.
- when the acceleration pedal is fully pressed;
- if the engine RPM is lowering till 550 rot/min (compressor is again coupling if the RPM is
reaching to 1800 rot/min);
- if the water temperature has increased to over 110° C;
- if the engine RPM is exceeding 6000 rot/min.
Injection / air conditioning strategy
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