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Home >> Volvo >> 2004 >> S40 T-5, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Ignition And Engine Control Systems - Specifications, Other (544 Body) >> Vehicle Communication Information, Engine Control Module (ECM) (B5254T3; 2004-2007) >> Description Of Parameters >> Parameter, Status >> Air Conditioning (A/C) Pressure Switch
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Air Conditioning (A/C) Pressure Switch

The engine control module (ECM) calculates the value from the signal from the air conditioning (A/C) pressure switch.

OFF = Engine control module (ECM) allows start up of compressor.

ON = Engine control module (ECM) does not allow start up of compressor.

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