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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (HVAC Climate Control System - General Information And Diagnostics - (Hybrid)) >> Description And Operation >> Climate Control System >> Humidity Sensor >> AUTO - ECON Mode ON

AUTO - ECON Mode ON

WARNING: This page is about a different variant/trim than selected.
NOTE: For vehicles built after 3/2008, in high ambient temperatures, the A/C will engage and the engine will run continuously for a short initial cool down period to allow the A/C compressor to run. This is done to allow the passenger compartment to cool somewhat before the A/C compressor begins cycling off with the engine.