System Check
HVAC SYSTEM CHECKACTION
^ Start engine.
^ Move blower speed selector switch to any position but Off.
^ Press A/C switch to On.
NORMAL RESULTS
^ Blower motor runs.
^ A/C compressor clutch engages and A/C condenser fan motor runs.
^ The ECM may cycle A/C compressor clutch and A/C condenser fan motor On and Off.